18209009

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{499}}^1$

素因数の和:920

約数の個数: 16

約数和(自身を含む): 22512000

約数和(自身を除く): 4302991

約数列:

[1, 7, 13, 91, 401, 499, 2807, 3493, 5213, 6487, 36491, 45409, 200099, 1400693, 2601287, 18209009]

約数ペア:

[(1, 18209009), (7, 2601287), (13, 1400693), (91, 200099), (401, 45409), (499, 36491), (2807, 6487), (3493, 5213)]