19117189

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{499}}^1$

素因数の和:940

約数の個数: 16

約数和(自身を含む): 23632000

約数和(自身を除く): 4514811

約数列:

[1, 7, 13, 91, 421, 499, 2947, 3493, 5473, 6487, 38311, 45409, 210079, 1470553, 2731027, 19117189]

約数ペア:

[(1, 19117189), (7, 2731027), (13, 1470553), (91, 210079), (421, 45409), (499, 38311), (2947, 6487), (3493, 5473)]