217071953

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{839}}^1\times {\mathrm{1607}}^1$

素因数の和:2476

約数の個数: 16

約数和(自身を含む): 259338240

約数和(自身を除く): 42266287

約数列:

[1, 7, 23, 161, 839, 1607, 5873, 11249, 19297, 36961, 135079, 258727, 1348273, 9437911, 31010279, 217071953]

約数ペア:

[(1, 217071953), (7, 31010279), (23, 9437911), (161, 1348273), (839, 258727), (1607, 135079), (5873, 36961), (11249, 19297)]