21781812

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139627}}^1$

素因数の和:139647

約数の個数: 24

約数和(自身を含む): 54734176

約数和(自身を除く): 32952364

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 139627, 279254, 418881, 558508, 837762, 1675524, 1815151, 3630302, 5445453, 7260604, 10890906, 21781812]

約数ペア:

[(1, 21781812), (2, 10890906), (3, 7260604), (4, 5445453), (6, 3630302), (12, 1815151), (13, 1675524), (26, 837762), (39, 558508), (52, 418881), (78, 279254), (156, 139627)]