20953390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{110281}}^1$

素因数の和:110307

約数の個数: 16

約数和(自身を含む): 39701520

約数和(自身を除く): 18748130

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 110281, 220562, 551405, 1102810, 2095339, 4190678, 10476695, 20953390]

約数ペア:

[(1, 20953390), (2, 10476695), (5, 4190678), (10, 2095339), (19, 1102810), (38, 551405), (95, 220562), (190, 110281)]