21659659

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{317}}^1$

素因数の和:594

約数の個数: 16

約数和(自身を含む): 25521408

約数和(自身を除く): 3861749

約数列:

[1, 7, 43, 227, 301, 317, 1589, 2219, 9761, 13631, 68327, 71959, 95417, 503713, 3094237, 21659659]

約数ペア:

[(1, 21659659), (7, 3094237), (43, 503713), (227, 95417), (301, 71959), (317, 68327), (1589, 13631), (2219, 9761)]