20811384

素因数分解:

$2^3\times 3^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{461}}^1$

素因数の和:506

約数の個数: 128

約数和(自身を含む): 66528000

約数和(自身を除く): 45716616

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 19, 22, 24, 27, 33, 36, 38, 44, 54, 57, 66, 72, 76, 88, 99, 108, 114, 132, 152, 171, 198, 209, 216, 228, 264, 297, 342, 396, 418, 456, 461, 513, 594, 627, 684, 792, 836, 922, 1026, 1188, 1254, 1368, 1383, 1672, 1844, 1881, 2052, 2376, 2508, 2766, 3688, 3762, 4104, 4149, 5016, 5071, 5532, 5643, 7524, 8298, 8759, 10142, 11064, 11286, 12447, 15048, 15213, 16596, 17518, 20284, 22572, 24894, 26277, 30426, 33192, 35036, 40568, 45144, 45639, 49788, 52554, 60852, 70072, 78831, 91278, 96349, 99576, 105108, 121704, 136917, 157662, 182556, 192698, 210216, 236493, 273834, 289047, 315324, 365112, 385396, 472986, 547668, 578094, 630648, 770792, 867141, 945972, 1095336, 1156188, 1734282, 1891944, 2312376, 2601423, 3468564, 5202846, 6937128, 10405692, 20811384]

約数ペア:

[(1, 20811384), (2, 10405692), (3, 6937128), (4, 5202846), (6, 3468564), (8, 2601423), (9, 2312376), (11, 1891944), (12, 1734282), (18, 1156188), (19, 1095336), (22, 945972), (24, 867141), (27, 770792), (33, 630648), (36, 578094), (38, 547668), (44, 472986), (54, 385396), (57, 365112), (66, 315324), (72, 289047), (76, 273834), (88, 236493), (99, 210216), (108, 192698), (114, 182556), (132, 157662), (152, 136917), (171, 121704), (198, 105108), (209, 99576), (216, 96349), (228, 91278), (264, 78831), (297, 70072), (342, 60852), (396, 52554), (418, 49788), (456, 45639), (461, 45144), (513, 40568), (594, 35036), (627, 33192), (684, 30426), (792, 26277), (836, 24894), (922, 22572), (1026, 20284), (1188, 17518), (1254, 16596), (1368, 15213), (1383, 15048), (1672, 12447), (1844, 11286), (1881, 11064), (2052, 10142), (2376, 8759), (2508, 8298), (2766, 7524), (3688, 5643), (3762, 5532), (4104, 5071), (4149, 5016)]