21653641510

素因数分解:

$2^1\times 5^1\times {\mathrm{15971}}^1\times {\mathrm{135581}}^1$

素因数の和:151559

約数の個数: 16

約数和(自身を含む): 38979282672

約数和(自身を除く): 17325641162

約数列:

[1, 2, 5, 10, 15971, 31942, 79855, 135581, 159710, 271162, 677905, 1355810, 2165364151, 4330728302, 10826820755, 21653641510]

約数ペア:

[(1, 21653641510), (2, 10826820755), (5, 4330728302), (10, 2165364151), (15971, 1355810), (31942, 677905), (79855, 271162), (135581, 159710)]