21671360

素因数分解:

$2^6\times 5^1\times {\mathrm{67723}}^1$

素因数の和:67740

約数の個数: 28

約数和(自身を含む): 51605688

約数和(自身を除く): 29934328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 67723, 135446, 270892, 338615, 541784, 677230, 1083568, 1354460, 2167136, 2708920, 4334272, 5417840, 10835680, 21671360]

約数ペア:

[(1, 21671360), (2, 10835680), (4, 5417840), (5, 4334272), (8, 2708920), (10, 2167136), (16, 1354460), (20, 1083568), (32, 677230), (40, 541784), (64, 338615), (80, 270892), (160, 135446), (320, 67723)]