28440986

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{106921}}^1$

素因数の和:106949

約数の個数: 16

約数和(自身を含む): 51322560

約数和(自身を除く): 22881574

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 106921, 213842, 748447, 1496894, 2031499, 4062998, 14220493, 28440986]

約数ペア:

[(1, 28440986), (2, 14220493), (7, 4062998), (14, 2031499), (19, 1496894), (38, 748447), (133, 213842), (266, 106921)]