21621010

素因数分解:

$2^1\times 5^1\times {\mathrm{977}}^1\times {\mathrm{2213}}^1$

素因数の和:3197

約数の個数: 16

約数和(自身を含む): 38975256

約数和(自身を除く): 17354246

約数列:

[1, 2, 5, 10, 977, 1954, 2213, 4426, 4885, 9770, 11065, 22130, 2162101, 4324202, 10810505, 21621010]

約数ペア:

[(1, 21621010), (2, 10810505), (5, 4324202), (10, 2162101), (977, 22130), (1954, 11065), (2213, 9770), (4426, 4885)]