21000983976

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{18413}}^1$

素因数の和:18536

約数の個数: 192

約数和(自身を含む): 68022789120

約数和(自身を除く): 47021805144

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 31, 36, 42, 56, 62, 63, 72, 73, 84, 93, 124, 126, 146, 168, 186, 217, 219, 248, 252, 279, 292, 372, 434, 438, 504, 511, 558, 584, 651, 657, 744, 868, 876, 1022, 1116, 1302, 1314, 1533, 1736, 1752, 1953, 2044, 2232, 2263, 2604, 2628, 3066, 3906, 4088, 4526, 4599, 5208, 5256, 6132, 6789, 7812, 9052, 9198, 12264, 13578, 15624, 15841, 18104, 18396, 18413, 20367, 27156, 31682, 36792, 36826, 40734, 47523, 54312, 55239, 63364, 73652, 81468, 95046, 110478, 126728, 128891, 142569, 147304, 162936, 165717, 190092, 220956, 257782, 285138, 331434, 380184, 386673, 441912, 515564, 570276, 570803, 662868, 773346, 1031128, 1140552, 1141606, 1160019, 1325736, 1344149, 1546692, 1712409, 2283212, 2320038, 2688298, 3093384, 3424818, 3995621, 4032447, 4566424, 4640076, 5137227, 5376596, 6849636, 7991242, 8064894, 9280152, 9409043, 10274454, 10753192, 11986863, 12097341, 13699272, 15982484, 16129788, 18818086, 20548908, 23973726, 24194682, 28227129, 31964968, 32259576, 35960589, 37636172, 41097816, 41668619, 47947452, 48389364, 56454258, 71921178, 75272344, 83337238, 84681387, 95894904, 96778728, 112908516, 125005857, 143842356, 166674476, 169362774, 225817032, 250011714, 287684712, 291680333, 333348952, 338725548, 375017571, 500023428, 583360666, 677451096, 750035142, 875040999, 1000046856, 1166721332, 1500070284, 1750081998, 2333442664, 2625122997, 3000140568, 3500163996, 5250245994, 7000327992, 10500491988, 21000983976]

約数ペア:

[(1, 21000983976), (2, 10500491988), (3, 7000327992), (4, 5250245994), (6, 3500163996), (7, 3000140568), (8, 2625122997), (9, 2333442664), (12, 1750081998), (14, 1500070284), (18, 1166721332), (21, 1000046856), (24, 875040999), (28, 750035142), (31, 677451096), (36, 583360666), (42, 500023428), (56, 375017571), (62, 338725548), (63, 333348952), (72, 291680333), (73, 287684712), (84, 250011714), (93, 225817032), (124, 169362774), (126, 166674476), (146, 143842356), (168, 125005857), (186, 112908516), (217, 96778728), (219, 95894904), (248, 84681387), (252, 83337238), (279, 75272344), (292, 71921178), (372, 56454258), (434, 48389364), (438, 47947452), (504, 41668619), (511, 41097816), (558, 37636172), (584, 35960589), (651, 32259576), (657, 31964968), (744, 28227129), (868, 24194682), (876, 23973726), (1022, 20548908), (1116, 18818086), (1302, 16129788), (1314, 15982484), (1533, 13699272), (1736, 12097341), (1752, 11986863), (1953, 10753192), (2044, 10274454), (2232, 9409043), (2263, 9280152), (2604, 8064894), (2628, 7991242), (3066, 6849636), (3906, 5376596), (4088, 5137227), (4526, 4640076), (4599, 4566424), (5208, 4032447), (5256, 3995621), (6132, 3424818), (6789, 3093384), (7812, 2688298), (9052, 2320038), (9198, 2283212), (12264, 1712409), (13578, 1546692), (15624, 1344149), (15841, 1325736), (18104, 1160019), (18396, 1141606), (18413, 1140552), (20367, 1031128), (27156, 773346), (31682, 662868), (36792, 570803), (36826, 570276), (40734, 515564), (47523, 441912), (54312, 386673), (55239, 380184), (63364, 331434), (73652, 285138), (81468, 257782), (95046, 220956), (110478, 190092), (126728, 165717), (128891, 162936), (142569, 147304)]