21500680

素因数分解:

$2^3\times 5^1\times {\mathrm{467}}^1\times {\mathrm{1151}}^1$

素因数の和:1629

約数の個数: 32

約数和(自身を含む): 48522240

約数和(自身を除く): 27021560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 467, 934, 1151, 1868, 2302, 2335, 3736, 4604, 4670, 5755, 9208, 9340, 11510, 18680, 23020, 46040, 537517, 1075034, 2150068, 2687585, 4300136, 5375170, 10750340, 21500680]

約数ペア:

[(1, 21500680), (2, 10750340), (4, 5375170), (5, 4300136), (8, 2687585), (10, 2150068), (20, 1075034), (40, 537517), (467, 46040), (934, 23020), (1151, 18680), (1868, 11510), (2302, 9340), (2335, 9208), (3736, 5755), (4604, 4670)]