20015866

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{1201}}^1$

素因数の和:1857

約数の個数: 16

約数和(自身を含む): 32410728

約数和(自身を除く): 12394862

約数列:

[1, 2, 13, 26, 641, 1201, 1282, 2402, 8333, 15613, 16666, 31226, 769841, 1539682, 10007933, 20015866]

約数ペア:

[(1, 20015866), (2, 10007933), (13, 1539682), (26, 769841), (641, 31226), (1201, 16666), (1282, 15613), (2402, 8333)]