81561858

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{10729}}^1$

素因数の和:10922

約数の個数: 32

約数和(自身を含む): 187474560

約数和(自身を除く): 105912702

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 181, 362, 543, 1086, 1267, 2534, 3801, 7602, 10729, 21458, 32187, 64374, 75103, 150206, 225309, 450618, 1941949, 3883898, 5825847, 11651694, 13593643, 27187286, 40780929, 81561858]

約数ペア:

[(1, 81561858), (2, 40780929), (3, 27187286), (6, 13593643), (7, 11651694), (14, 5825847), (21, 3883898), (42, 1941949), (181, 450618), (362, 225309), (543, 150206), (1086, 75103), (1267, 64374), (2534, 32187), (3801, 21458), (7602, 10729)]