20669311

素因数分解:

${\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:426

約数の個数: 16

約数和(自身を含む): 22952160

約数和(自身を除く): 2282849

約数列:

[1, 13, 53, 131, 229, 689, 1703, 2977, 6943, 12137, 29999, 90259, 157781, 389987, 1589947, 20669311]

約数ペア:

[(1, 20669311), (13, 1589947), (53, 389987), (131, 157781), (229, 90259), (689, 29999), (1703, 12137), (2977, 6943)]