18637287

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{5147}}^1$

素因数の和:5238

約数の個数: 16

約数和(自身を含む): 26687232

約数和(自身を除く): 8049945

約数列:

[1, 3, 17, 51, 71, 213, 1207, 3621, 5147, 15441, 87499, 262497, 365437, 1096311, 6212429, 18637287]

約数ペア:

[(1, 18637287), (3, 6212429), (17, 1096311), (51, 365437), (71, 262497), (213, 87499), (1207, 15441), (3621, 5147)]