20895891

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{9769}}^1$

素因数の和:9826

約数の個数: 16

約数和(自身を含む): 30013440

約数和(自身を除く): 9117549

約数列:

[1, 3, 23, 31, 69, 93, 713, 2139, 9769, 29307, 224687, 302839, 674061, 908517, 6965297, 20895891]

約数ペア:

[(1, 20895891), (3, 6965297), (23, 908517), (31, 674061), (69, 302839), (93, 224687), (713, 29307), (2139, 9769)]