18155205

素因数分解:

$3^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{743}}^1$

素因数の和:938

約数の個数: 32

約数和(自身を含む): 32497920

約数和(自身を除く): 14342715

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 181, 543, 743, 905, 1629, 2229, 2715, 3715, 4887, 6687, 8145, 11145, 20061, 24435, 33435, 100305, 134483, 403449, 672415, 1210347, 2017245, 3631041, 6051735, 18155205]

約数ペア:

[(1, 18155205), (3, 6051735), (5, 3631041), (9, 2017245), (15, 1210347), (27, 672415), (45, 403449), (135, 134483), (181, 100305), (543, 33435), (743, 24435), (905, 20061), (1629, 11145), (2229, 8145), (2715, 6687), (3715, 4887)]