18705681

素因数分解:

$3^3\times {\mathrm{113}}^1\times {\mathrm{6131}}^1$

素因数の和:6253

約数の個数: 16

約数和(自身を含む): 27961920

約数和(自身を除く): 9256239

約数列:

[1, 3, 9, 27, 113, 339, 1017, 3051, 6131, 18393, 55179, 165537, 692803, 2078409, 6235227, 18705681]

約数ペア:

[(1, 18705681), (3, 6235227), (9, 2078409), (27, 692803), (113, 165537), (339, 55179), (1017, 18393), (3051, 6131)]