3990915

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{677}}^1$

素因数の和:819

約数の個数: 24

約数和(自身を含む): 6980688

約数和(自身を除く): 2989773

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 677, 1179, 1965, 2031, 3385, 5895, 6093, 10155, 30465, 88687, 266061, 443435, 798183, 1330305, 3990915]

約数ペア:

[(1, 3990915), (3, 1330305), (5, 798183), (9, 443435), (15, 266061), (45, 88687), (131, 30465), (393, 10155), (655, 6093), (677, 5895), (1179, 3385), (1965, 2031)]