18854227

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{647}}^1$

素因数の和:858

約数の個数: 16

約数和(自身を含む): 22643712

約数和(自身を除く): 3789485

約数列:

[1, 7, 23, 161, 181, 647, 1267, 4163, 4529, 14881, 29141, 104167, 117107, 819749, 2693461, 18854227]

約数ペア:

[(1, 18854227), (7, 2693461), (23, 819749), (161, 117107), (181, 104167), (647, 29141), (1267, 14881), (4163, 4529)]