21000478056

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{762877}}^1$

素因数の和:762954

約数の個数: 64

約数和(自身を含む): 55659578880

約数和(自身を除く): 34659100824

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 37, 62, 74, 93, 111, 124, 148, 186, 222, 248, 296, 372, 444, 744, 888, 1147, 2294, 3441, 4588, 6882, 9176, 13764, 27528, 762877, 1525754, 2288631, 3051508, 4577262, 6103016, 9154524, 18309048, 23649187, 28226449, 47298374, 56452898, 70947561, 84679347, 94596748, 112905796, 141895122, 169358694, 189193496, 225811592, 283790244, 338717388, 567580488, 677434776, 875019919, 1750039838, 2625059757, 3500079676, 5250119514, 7000159352, 10500239028, 21000478056]

約数ペア:

[(1, 21000478056), (2, 10500239028), (3, 7000159352), (4, 5250119514), (6, 3500079676), (8, 2625059757), (12, 1750039838), (24, 875019919), (31, 677434776), (37, 567580488), (62, 338717388), (74, 283790244), (93, 225811592), (111, 189193496), (124, 169358694), (148, 141895122), (186, 112905796), (222, 94596748), (248, 84679347), (296, 70947561), (372, 56452898), (444, 47298374), (744, 28226449), (888, 23649187), (1147, 18309048), (2294, 9154524), (3441, 6103016), (4588, 4577262), (6882, 3051508), (9176, 2288631), (13764, 1525754), (27528, 762877)]