645411

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:115

約数の個数: 24

約数和(自身を含む): 995520

約数和(自身を除く): 350109

約数列:

[1, 3, 13, 19, 39, 57, 67, 169, 201, 247, 507, 741, 871, 1273, 2613, 3211, 3819, 9633, 11323, 16549, 33969, 49647, 215137, 645411]

約数ペア:

[(1, 645411), (3, 215137), (13, 49647), (19, 33969), (39, 16549), (57, 11323), (67, 9633), (169, 3819), (201, 3211), (247, 2613), (507, 1273), (741, 871)]