189778815

素因数分解:

$3^3\times 5^1\times {\mathrm{1405769}}^1$

素因数の和:1405783

約数の個数: 16

約数和(自身を含む): 337384800

約数和(自身を除く): 147605985

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1405769, 4217307, 7028845, 12651921, 21086535, 37955763, 63259605, 189778815]

約数ペア:

[(1, 189778815), (3, 63259605), (5, 37955763), (9, 21086535), (15, 12651921), (27, 7028845), (45, 4217307), (135, 1405769)]