21173187984

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{313}}^1$

素因数の和:650

約数の個数: 240

約数和(自身を含む): 61562488320

約数和(自身を除く): 40389300336

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 31, 39, 48, 52, 62, 78, 93, 104, 124, 156, 169, 186, 208, 248, 269, 312, 313, 338, 372, 403, 496, 507, 538, 624, 626, 676, 744, 806, 807, 939, 1014, 1076, 1209, 1252, 1352, 1488, 1612, 1614, 1878, 2028, 2152, 2418, 2504, 2704, 3224, 3228, 3497, 3756, 4056, 4069, 4304, 4836, 5008, 5239, 6448, 6456, 6994, 7512, 8112, 8138, 8339, 9672, 9703, 10478, 10491, 12207, 12912, 13988, 15024, 15717, 16276, 16678, 19344, 19406, 20956, 20982, 24414, 25017, 27976, 29109, 31434, 32552, 33356, 38812, 41912, 41964, 45461, 48828, 50034, 52897, 55952, 58218, 62868, 65104, 66712, 77624, 83824, 83928, 84197, 90922, 97656, 100068, 105794, 108407, 116436, 125736, 126139, 133424, 136383, 155248, 158691, 167856, 168394, 181844, 195312, 200136, 211588, 216814, 232872, 251472, 252278, 252591, 272766, 317382, 325221, 336788, 363688, 378417, 400272, 423176, 433628, 465744, 504556, 505182, 545532, 634764, 650442, 673576, 727376, 756834, 846352, 867256, 1009112, 1010364, 1091064, 1094561, 1269528, 1300884, 1347152, 1409291, 1513668, 1639807, 1734512, 2018224, 2020728, 2182128, 2189122, 2539056, 2601768, 2610107, 2818582, 3027336, 3279614, 3283683, 4041456, 4227873, 4378244, 4919421, 5203536, 5220214, 5637164, 6054672, 6559228, 6567366, 7830321, 8455746, 8756488, 9838842, 10440428, 11274328, 13118456, 13134732, 14229293, 15660642, 16911492, 17512976, 19677684, 20880856, 22548656, 26236912, 26269464, 28458586, 31321284, 33822984, 33931391, 39355368, 41761712, 42687879, 52538928, 56917172, 62642568, 67645968, 67862782, 78710736, 85375758, 101794173, 113834344, 125285136, 135725564, 170751516, 203588346, 227668688, 271451128, 341503032, 407176692, 441108083, 542902256, 683006064, 814353384, 882216166, 1323324249, 1628706768, 1764432332, 2646648498, 3528864664, 5293296996, 7057729328, 10586593992, 21173187984]

約数ペア:

[(1, 21173187984), (2, 10586593992), (3, 7057729328), (4, 5293296996), (6, 3528864664), (8, 2646648498), (12, 1764432332), (13, 1628706768), (16, 1323324249), (24, 882216166), (26, 814353384), (31, 683006064), (39, 542902256), (48, 441108083), (52, 407176692), (62, 341503032), (78, 271451128), (93, 227668688), (104, 203588346), (124, 170751516), (156, 135725564), (169, 125285136), (186, 113834344), (208, 101794173), (248, 85375758), (269, 78710736), (312, 67862782), (313, 67645968), (338, 62642568), (372, 56917172), (403, 52538928), (496, 42687879), (507, 41761712), (538, 39355368), (624, 33931391), (626, 33822984), (676, 31321284), (744, 28458586), (806, 26269464), (807, 26236912), (939, 22548656), (1014, 20880856), (1076, 19677684), (1209, 17512976), (1252, 16911492), (1352, 15660642), (1488, 14229293), (1612, 13134732), (1614, 13118456), (1878, 11274328), (2028, 10440428), (2152, 9838842), (2418, 8756488), (2504, 8455746), (2704, 7830321), (3224, 6567366), (3228, 6559228), (3497, 6054672), (3756, 5637164), (4056, 5220214), (4069, 5203536), (4304, 4919421), (4836, 4378244), (5008, 4227873), (5239, 4041456), (6448, 3283683), (6456, 3279614), (6994, 3027336), (7512, 2818582), (8112, 2610107), (8138, 2601768), (8339, 2539056), (9672, 2189122), (9703, 2182128), (10478, 2020728), (10491, 2018224), (12207, 1734512), (12912, 1639807), (13988, 1513668), (15024, 1409291), (15717, 1347152), (16276, 1300884), (16678, 1269528), (19344, 1094561), (19406, 1091064), (20956, 1010364), (20982, 1009112), (24414, 867256), (25017, 846352), (27976, 756834), (29109, 727376), (31434, 673576), (32552, 650442), (33356, 634764), (38812, 545532), (41912, 505182), (41964, 504556), (45461, 465744), (48828, 433628), (50034, 423176), (52897, 400272), (55952, 378417), (58218, 363688), (62868, 336788), (65104, 325221), (66712, 317382), (77624, 272766), (83824, 252591), (83928, 252278), (84197, 251472), (90922, 232872), (97656, 216814), (100068, 211588), (105794, 200136), (108407, 195312), (116436, 181844), (125736, 168394), (126139, 167856), (133424, 158691), (136383, 155248)]