21412985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{617}}^1\times {\mathrm{631}}^1$

素因数の和:1264

約数の個数: 16

約数和(自身を含む): 28121472

約数和(自身を除く): 6708487

約数列:

[1, 5, 11, 55, 617, 631, 3085, 3155, 6787, 6941, 33935, 34705, 389327, 1946635, 4282597, 21412985]

約数ペア:

[(1, 21412985), (5, 4282597), (11, 1946635), (55, 389327), (617, 34705), (631, 33935), (3085, 6941), (3155, 6787)]