12931665

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{6581}}^1$

素因数の和:6720

約数の個数: 16

約数和(自身を含む): 20851776

約数和(自身を除く): 7920111

約数列:

[1, 3, 5, 15, 131, 393, 655, 1965, 6581, 19743, 32905, 98715, 862111, 2586333, 4310555, 12931665]

約数ペア:

[(1, 12931665), (3, 4310555), (5, 2586333), (15, 862111), (131, 98715), (393, 32905), (655, 19743), (1965, 6581)]