21690672

素因数分解:

$2^4\times 3^1\times {\mathrm{139}}^1\times {\mathrm{3251}}^1$

素因数の和:3401

約数の個数: 40

約数和(自身を含む): 56454720

約数和(自身を除く): 34764048

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 139, 278, 417, 556, 834, 1112, 1668, 2224, 3251, 3336, 6502, 6672, 9753, 13004, 19506, 26008, 39012, 52016, 78024, 156048, 451889, 903778, 1355667, 1807556, 2711334, 3615112, 5422668, 7230224, 10845336, 21690672]

約数ペア:

[(1, 21690672), (2, 10845336), (3, 7230224), (4, 5422668), (6, 3615112), (8, 2711334), (12, 1807556), (16, 1355667), (24, 903778), (48, 451889), (139, 156048), (278, 78024), (417, 52016), (556, 39012), (834, 26008), (1112, 19506), (1668, 13004), (2224, 9753), (3251, 6672), (3336, 6502)]