21001031872

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{233}}^1\times {\mathrm{2239}}^1$

素因数の和:2538

約数の個数: 112

約数和(自身を含む): 45532730880

約数和(自身を除く): 24531699008

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 37, 64, 68, 74, 136, 148, 233, 272, 296, 466, 544, 592, 629, 932, 1088, 1184, 1258, 1864, 2239, 2368, 2516, 3728, 3961, 4478, 5032, 7456, 7922, 8621, 8956, 10064, 14912, 15844, 17242, 17912, 20128, 31688, 34484, 35824, 38063, 40256, 63376, 68968, 71648, 76126, 82843, 126752, 137936, 143296, 146557, 152252, 165686, 253504, 275872, 293114, 304504, 331372, 521687, 551744, 586228, 609008, 662744, 1043374, 1172456, 1218016, 1325488, 1408331, 2086748, 2344912, 2436032, 2650976, 2816662, 4173496, 4689824, 5301952, 5633324, 8346992, 8868679, 9379648, 11266648, 16693984, 17737358, 19302419, 22533296, 33387968, 35474716, 38604838, 45066592, 70949432, 77209676, 90133184, 141898864, 154419352, 283797728, 308838704, 328141123, 567595456, 617677408, 656282246, 1235354816, 1312564492, 2625128984, 5250257968, 10500515936, 21001031872]

約数ペア:

[(1, 21001031872), (2, 10500515936), (4, 5250257968), (8, 2625128984), (16, 1312564492), (17, 1235354816), (32, 656282246), (34, 617677408), (37, 567595456), (64, 328141123), (68, 308838704), (74, 283797728), (136, 154419352), (148, 141898864), (233, 90133184), (272, 77209676), (296, 70949432), (466, 45066592), (544, 38604838), (592, 35474716), (629, 33387968), (932, 22533296), (1088, 19302419), (1184, 17737358), (1258, 16693984), (1864, 11266648), (2239, 9379648), (2368, 8868679), (2516, 8346992), (3728, 5633324), (3961, 5301952), (4478, 4689824), (5032, 4173496), (7456, 2816662), (7922, 2650976), (8621, 2436032), (8956, 2344912), (10064, 2086748), (14912, 1408331), (15844, 1325488), (17242, 1218016), (17912, 1172456), (20128, 1043374), (31688, 662744), (34484, 609008), (35824, 586228), (38063, 551744), (40256, 521687), (63376, 331372), (68968, 304504), (71648, 293114), (76126, 275872), (82843, 253504), (126752, 165686), (137936, 152252), (143296, 146557)]