20651384

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{198571}}^1$

素因数の和:198590

約数の個数: 16

約数和(自身を含む): 41700120

約数和(自身を除く): 21048736

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 198571, 397142, 794284, 1588568, 2581423, 5162846, 10325692, 20651384]

約数ペア:

[(1, 20651384), (2, 10325692), (4, 5162846), (8, 2581423), (13, 1588568), (26, 794284), (52, 397142), (104, 198571)]