20502508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{941}}^1$

素因数の和:1377

約数の個数: 24

約数和(自身を含む): 38772720

約数和(自身を除く): 18270212

約数列:

[1, 2, 4, 13, 26, 52, 419, 838, 941, 1676, 1882, 3764, 5447, 10894, 12233, 21788, 24466, 48932, 394279, 788558, 1577116, 5125627, 10251254, 20502508]

約数ペア:

[(1, 20502508), (2, 10251254), (4, 5125627), (13, 1577116), (26, 788558), (52, 394279), (419, 48932), (838, 24466), (941, 21788), (1676, 12233), (1882, 10894), (3764, 5447)]