20169188

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{977}}^1$

素因数の和:1391

約数の個数: 24

約数和(自身を含む): 38145912

約数和(自身を除く): 17976724

約数列:

[1, 2, 4, 13, 26, 52, 397, 794, 977, 1588, 1954, 3908, 5161, 10322, 12701, 20644, 25402, 50804, 387869, 775738, 1551476, 5042297, 10084594, 20169188]

約数ペア:

[(1, 20169188), (2, 10084594), (4, 5042297), (13, 1551476), (26, 775738), (52, 387869), (397, 50804), (794, 25402), (977, 20644), (1588, 12701), (1954, 10322), (3908, 5161)]