31647447

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{20807}}^1$

素因数の和:20839

約数の個数: 18

約数和(自身を含む): 49502232

約数和(自身を除く): 17854785

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 20807, 62421, 187263, 270491, 811473, 2434419, 3516383, 10549149, 31647447]

約数ペア:

[(1, 31647447), (3, 10549149), (9, 3516383), (13, 2434419), (39, 811473), (117, 270491), (169, 187263), (507, 62421), (1521, 20807)]