21992889

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{1307}}^1$

素因数の和:1460

約数の個数: 16

約数和(自身を含む): 30136320

約数和(自身を除く): 8143431

約数列:

[1, 3, 71, 79, 213, 237, 1307, 3921, 5609, 16827, 92797, 103253, 278391, 309759, 7330963, 21992889]

約数ペア:

[(1, 21992889), (3, 7330963), (71, 309759), (79, 278391), (213, 103253), (237, 92797), (1307, 16827), (3921, 5609)]