405440919

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{51721}}^1$

素因数の和:51807

約数の個数: 24

約数和(自身を含む): 640111472

約数和(自身を除く): 234670553

約数列:

[1, 3, 9, 13, 39, 67, 117, 201, 603, 871, 2613, 7839, 51721, 155163, 465489, 672373, 2017119, 3465307, 6051357, 10395921, 31187763, 45048991, 135146973, 405440919]

約数ペア:

[(1, 405440919), (3, 135146973), (9, 45048991), (13, 31187763), (39, 10395921), (67, 6051357), (117, 3465307), (201, 2017119), (603, 672373), (871, 465489), (2613, 155163), (7839, 51721)]