21351290

素因数分解:

$2^1\times 5^1\times {\mathrm{941}}^1\times {\mathrm{2269}}^1$

素因数の和:3217

約数の個数: 16

約数和(自身を含む): 38490120

約数和(自身を除く): 17138830

約数列:

[1, 2, 5, 10, 941, 1882, 2269, 4538, 4705, 9410, 11345, 22690, 2135129, 4270258, 10675645, 21351290]

約数ペア:

[(1, 21351290), (2, 10675645), (5, 4270258), (10, 2135129), (941, 22690), (1882, 11345), (2269, 9410), (4538, 4705)]