31957731

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{21011}}^1$

素因数の和:21043

約数の個数: 18

約数和(自身を含む): 49987548

約数和(自身を除く): 18029817

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 21011, 63033, 189099, 273143, 819429, 2458287, 3550859, 10652577, 31957731]

約数ペア:

[(1, 31957731), (3, 10652577), (9, 3550859), (13, 2458287), (39, 819429), (117, 273143), (169, 189099), (507, 63033), (1521, 21011)]