21930830

素因数分解:

$2^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{2213}}^1$

素因数の和:3211

約数の個数: 16

約数和(自身を含む): 39533184

約数和(自身を除く): 17602354

約数列:

[1, 2, 5, 10, 991, 1982, 2213, 4426, 4955, 9910, 11065, 22130, 2193083, 4386166, 10965415, 21930830]

約数ペア:

[(1, 21930830), (2, 10965415), (5, 4386166), (10, 2193083), (991, 22130), (1982, 11065), (2213, 9910), (4426, 4955)]