21516095

素因数分解:

$5^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1\times {\mathrm{307}}^1$

素因数の和:550

約数の個数: 16

約数和(自身を含む): 26345088

約数和(自身を除く): 4828993

約数列:

[1, 5, 107, 131, 307, 535, 655, 1535, 14017, 32849, 40217, 70085, 164245, 201085, 4303219, 21516095]

約数ペア:

[(1, 21516095), (5, 4303219), (107, 201085), (131, 164245), (307, 70085), (535, 40217), (655, 32849), (1535, 14017)]