991351885

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{242681}}^1$

素因数の和:242748

約数の個数: 16

約数和(自身を含む): 1281360960

約数和(自身を除く): 290009075

約数列:

[1, 5, 19, 43, 95, 215, 817, 4085, 242681, 1213405, 4610939, 10435283, 23054695, 52176415, 198270377, 991351885]

約数ペア:

[(1, 991351885), (5, 198270377), (19, 52176415), (43, 23054695), (95, 10435283), (215, 4610939), (817, 1213405), (4085, 242681)]