20404137

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{1181}}^1$

素因数の和:1640

約数の個数: 16

約数和(自身を含む): 29389248

約数和(自身を除く): 8985111

約数列:

[1, 3, 13, 39, 443, 1181, 1329, 3543, 5759, 15353, 17277, 46059, 523183, 1569549, 6801379, 20404137]

約数ペア:

[(1, 20404137), (3, 6801379), (13, 1569549), (39, 523183), (443, 46059), (1181, 17277), (1329, 15353), (3543, 5759)]