21689356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{2411}}^1$

素因数の和:2601

約数の個数: 24

約数和(自身を含む): 41129424

約数和(自身を除く): 19440068

約数列:

[1, 2, 4, 13, 26, 52, 173, 346, 692, 2249, 2411, 4498, 4822, 8996, 9644, 31343, 62686, 125372, 417103, 834206, 1668412, 5422339, 10844678, 21689356]

約数ペア:

[(1, 21689356), (2, 10844678), (4, 5422339), (13, 1668412), (26, 834206), (52, 417103), (173, 125372), (346, 62686), (692, 31343), (2249, 9644), (2411, 8996), (4498, 4822)]