20811871

素因数分解:

${\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:310

約数の個数: 16

約数和(自身を含む): 22257664

約数和(自身を除く): 1445793

約数列:

[1, 37, 43, 103, 127, 1591, 3811, 4429, 4699, 5461, 13081, 163873, 202057, 483997, 562483, 20811871]

約数ペア:

[(1, 20811871), (37, 562483), (43, 483997), (103, 202057), (127, 163873), (1591, 13081), (3811, 5461), (4429, 4699)]