20421586

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1\times {\mathrm{829}}^1$

素因数の和:1053

約数の個数: 16

約数和(自身を含む): 31224600

約数和(自身を除く): 10803014

約数列:

[1, 2, 109, 113, 218, 226, 829, 1658, 12317, 24634, 90361, 93677, 180722, 187354, 10210793, 20421586]

約数ペア:

[(1, 20421586), (2, 10210793), (109, 187354), (113, 180722), (218, 93677), (226, 90361), (829, 24634), (1658, 12317)]