25721017

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{653}}^1$

素因数の和:1008

約数の個数: 16

約数和(自身を含む): 31266432

約数和(自身を除く): 5545415

約数列:

[1, 7, 17, 119, 331, 653, 2317, 4571, 5627, 11101, 39389, 77707, 216143, 1513001, 3674431, 25721017]

約数ペア:

[(1, 25721017), (7, 3674431), (17, 1513001), (119, 216143), (331, 77707), (653, 39389), (2317, 11101), (4571, 5627)]