18103581

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{4217}}^1$

素因数の和:4282

約数の個数: 20

約数和(自身を含む): 27560412

約数和(自身を除く): 9456831

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4217, 4293, 12651, 37953, 113859, 223501, 341577, 670503, 2011509, 6034527, 18103581]

約数ペア:

[(1, 18103581), (3, 6034527), (9, 2011509), (27, 670503), (53, 341577), (81, 223501), (159, 113859), (477, 37953), (1431, 12651), (4217, 4293)]