18998679

素因数分解:

$3^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{2909}}^1$

素因数の和:3230

約数の個数: 16

約数和(自身を含む): 29053440

約数和(自身を除く): 10054761

約数列:

[1, 3, 7, 21, 311, 933, 2177, 2909, 6531, 8727, 20363, 61089, 904699, 2714097, 6332893, 18998679]

約数ペア:

[(1, 18998679), (3, 6332893), (7, 2714097), (21, 904699), (311, 61089), (933, 20363), (2177, 8727), (2909, 6531)]