21066410

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29671}}^1$

素因数の和:29749

約数の個数: 16

約数和(自身を含む): 38454912

約数和(自身を除く): 17388502

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29671, 59342, 148355, 296710, 2106641, 4213282, 10533205, 21066410]

約数ペア:

[(1, 21066410), (2, 10533205), (5, 4213282), (10, 2106641), (71, 296710), (142, 148355), (355, 59342), (710, 29671)]