15876567

素因数分解:

$3^4\times 7^1\times {\mathrm{28001}}^1$

素因数の和:28020

約数の個数: 20

約数和(自身を含む): 27105936

約数和(自身を除く): 11229369

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 28001, 84003, 196007, 252009, 588021, 756027, 1764063, 2268081, 5292189, 15876567]

約数ペア:

[(1, 15876567), (3, 5292189), (7, 2268081), (9, 1764063), (21, 756027), (27, 588021), (63, 252009), (81, 196007), (189, 84003), (567, 28001)]