21749260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3637}}^1$

素因数の和:3682

約数の個数: 48

約数和(自身を含む): 51339456

約数和(自身を除く): 29590196

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 3637, 5980, 7274, 14548, 18185, 36370, 47281, 72740, 83651, 94562, 167302, 189124, 236405, 334604, 418255, 472810, 836510, 945620, 1087463, 1673020, 2174926, 4349852, 5437315, 10874630, 21749260]

約数ペア:

[(1, 21749260), (2, 10874630), (4, 5437315), (5, 4349852), (10, 2174926), (13, 1673020), (20, 1087463), (23, 945620), (26, 836510), (46, 472810), (52, 418255), (65, 334604), (92, 236405), (115, 189124), (130, 167302), (230, 94562), (260, 83651), (299, 72740), (460, 47281), (598, 36370), (1196, 18185), (1495, 14548), (2990, 7274), (3637, 5980)]