21668520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{3407}}^1$

素因数の和:3474

約数の個数: 64

約数和(自身を含む): 66251520

約数和(自身を除く): 44583000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 53, 60, 106, 120, 159, 212, 265, 318, 424, 530, 636, 795, 1060, 1272, 1590, 2120, 3180, 3407, 6360, 6814, 10221, 13628, 17035, 20442, 27256, 34070, 40884, 51105, 68140, 81768, 102210, 136280, 180571, 204420, 361142, 408840, 541713, 722284, 902855, 1083426, 1444568, 1805710, 2166852, 2708565, 3611420, 4333704, 5417130, 7222840, 10834260, 21668520]

約数ペア:

[(1, 21668520), (2, 10834260), (3, 7222840), (4, 5417130), (5, 4333704), (6, 3611420), (8, 2708565), (10, 2166852), (12, 1805710), (15, 1444568), (20, 1083426), (24, 902855), (30, 722284), (40, 541713), (53, 408840), (60, 361142), (106, 204420), (120, 180571), (159, 136280), (212, 102210), (265, 81768), (318, 68140), (424, 51105), (530, 40884), (636, 34070), (795, 27256), (1060, 20442), (1272, 17035), (1590, 13628), (2120, 10221), (3180, 6814), (3407, 6360)]