21715130

素因数分解:

$2^1\times 5^1\times {\mathrm{571}}^1\times {\mathrm{3803}}^1$

素因数の和:4381

約数の個数: 16

約数和(自身を含む): 39165984

約数和(自身を除く): 17450854

約数列:

[1, 2, 5, 10, 571, 1142, 2855, 3803, 5710, 7606, 19015, 38030, 2171513, 4343026, 10857565, 21715130]

約数ペア:

[(1, 21715130), (2, 10857565), (5, 4343026), (10, 2171513), (571, 38030), (1142, 19015), (2855, 7606), (3803, 5710)]