20461390

素因数分解:

$2^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{12553}}^1$

素因数の和:12723

約数の個数: 16

約数和(自身を含む): 37059408

約数和(自身を除く): 16598018

約数列:

[1, 2, 5, 10, 163, 326, 815, 1630, 12553, 25106, 62765, 125530, 2046139, 4092278, 10230695, 20461390]

約数ペア:

[(1, 20461390), (2, 10230695), (5, 4092278), (10, 2046139), (163, 125530), (326, 62765), (815, 25106), (1630, 12553)]