31278793

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20219}}^1$

素因数の和:20256

約数の個数: 16

約数和(自身を含む): 40763520

約数和(自身を除く): 9484727

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 20219, 141533, 262847, 343723, 1839929, 2406061, 4468399, 31278793]

約数ペア:

[(1, 31278793), (7, 4468399), (13, 2406061), (17, 1839929), (91, 343723), (119, 262847), (221, 141533), (1547, 20219)]