80972451

素因数分解:

$3^2\times 7^2\times {\mathrm{183611}}^1$

素因数の和:183631

約数の個数: 18

約数和(自身を含む): 136056492

約数和(自身を除く): 55084041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 183611, 550833, 1285277, 1652499, 3855831, 8996939, 11567493, 26990817, 80972451]

約数ペア:

[(1, 80972451), (3, 26990817), (7, 11567493), (9, 8996939), (21, 3855831), (49, 1652499), (63, 1285277), (147, 550833), (441, 183611)]