21271010

素因数分解:

$2^1\times 5^1\times {\mathrm{631}}^1\times {\mathrm{3371}}^1$

素因数の和:4009

約数の個数: 16

約数和(自身を含む): 38359872

約数和(自身を除く): 17088862

約数列:

[1, 2, 5, 10, 631, 1262, 3155, 3371, 6310, 6742, 16855, 33710, 2127101, 4254202, 10635505, 21271010]

約数ペア:

[(1, 21271010), (2, 10635505), (5, 4254202), (10, 2127101), (631, 33710), (1262, 16855), (3155, 6742), (3371, 6310)]