20307911

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2137}}^1$

素因数の和:2210

約数の個数: 16

約数和(自身を含む): 23706144

約数和(自身を除く): 3398233

約数列:

[1, 13, 17, 43, 221, 559, 731, 2137, 9503, 27781, 36329, 91891, 472277, 1194583, 1562147, 20307911]

約数ペア:

[(1, 20307911), (13, 1562147), (17, 1194583), (43, 472277), (221, 91891), (559, 36329), (731, 27781), (2137, 9503)]