21901010

素因数分解:

$2^1\times 5^1\times {\mathrm{709}}^1\times {\mathrm{3089}}^1$

素因数の和:3805

約数の個数: 16

約数和(自身を含む): 39490200

約数和(自身を除く): 17589190

約数列:

[1, 2, 5, 10, 709, 1418, 3089, 3545, 6178, 7090, 15445, 30890, 2190101, 4380202, 10950505, 21901010]

約数ペア:

[(1, 21901010), (2, 10950505), (5, 4380202), (10, 2190101), (709, 30890), (1418, 15445), (3089, 7090), (3545, 6178)]