20649668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{5927}}^1$

素因数の和:6011

約数の個数: 24

約数和(自身を含む): 39504192

約数和(自身を除く): 18854524

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 3484, 5927, 11854, 23708, 77051, 154102, 308204, 397109, 794218, 1588436, 5162417, 10324834, 20649668]

約数ペア:

[(1, 20649668), (2, 10324834), (4, 5162417), (13, 1588436), (26, 794218), (52, 397109), (67, 308204), (134, 154102), (268, 77051), (871, 23708), (1742, 11854), (3484, 5927)]