20655804

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{132409}}^1$

素因数の和:132429

約数の個数: 24

約数和(自身を含む): 51904720

約数和(自身を除く): 31248916

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 132409, 264818, 397227, 529636, 794454, 1588908, 1721317, 3442634, 5163951, 6885268, 10327902, 20655804]

約数ペア:

[(1, 20655804), (2, 10327902), (3, 6885268), (4, 5163951), (6, 3442634), (12, 1721317), (13, 1588908), (26, 794454), (39, 529636), (52, 397227), (78, 264818), (156, 132409)]