21322270

素因数分解:

$2^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{4273}}^1$

素因数の和:4779

約数の個数: 16

約数和(自身を含む): 38466000

約数和(自身を除く): 17143730

約数列:

[1, 2, 5, 10, 499, 998, 2495, 4273, 4990, 8546, 21365, 42730, 2132227, 4264454, 10661135, 21322270]

約数ペア:

[(1, 21322270), (2, 10661135), (5, 4264454), (10, 2132227), (499, 42730), (998, 21365), (2495, 8546), (4273, 4990)]