31785507

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{661}}^1$

素因数の和:820

約数の個数: 32

約数和(自身を含む): 51159360

約数和(自身を除く): 19373853

約数列:

[1, 3, 9, 13, 27, 39, 117, 137, 351, 411, 661, 1233, 1781, 1983, 3699, 5343, 5949, 8593, 16029, 17847, 25779, 48087, 77337, 90557, 232011, 271671, 815013, 1177241, 2445039, 3531723, 10595169, 31785507]

約数ペア:

[(1, 31785507), (3, 10595169), (9, 3531723), (13, 2445039), (27, 1177241), (39, 815013), (117, 271671), (137, 232011), (351, 90557), (411, 77337), (661, 48087), (1233, 25779), (1781, 17847), (1983, 16029), (3699, 8593), (5343, 5949)]