21256498

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{1579}}^1$

素因数の和:1761

約数の個数: 16

約数和(自身を含む): 32762880

約数和(自身を除く): 11506382

約数列:

[1, 2, 53, 106, 127, 254, 1579, 3158, 6731, 13462, 83687, 167374, 200533, 401066, 10628249, 21256498]

約数ペア:

[(1, 21256498), (2, 10628249), (53, 401066), (106, 200533), (127, 167374), (254, 83687), (1579, 13462), (3158, 6731)]