21695550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{2729}}^1$

素因数の和:2797

約数の個数: 48

約数和(自身を含む): 54840240

約数和(自身を除く): 33144690

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 53, 75, 106, 150, 159, 265, 318, 530, 795, 1325, 1590, 2650, 2729, 3975, 5458, 7950, 8187, 13645, 16374, 27290, 40935, 68225, 81870, 136450, 144637, 204675, 289274, 409350, 433911, 723185, 867822, 1446370, 2169555, 3615925, 4339110, 7231850, 10847775, 21695550]

約数ペア:

[(1, 21695550), (2, 10847775), (3, 7231850), (5, 4339110), (6, 3615925), (10, 2169555), (15, 1446370), (25, 867822), (30, 723185), (50, 433911), (53, 409350), (75, 289274), (106, 204675), (150, 144637), (159, 136450), (265, 81870), (318, 68225), (530, 40935), (795, 27290), (1325, 16374), (1590, 13645), (2650, 8187), (2729, 7950), (3975, 5458)]