21831595

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2309}}^1$

素因数の和:2406

約数の個数: 16

約数和(自身を含む): 27498240

約数和(自身を除く): 5666645

約数列:

[1, 5, 31, 61, 155, 305, 1891, 2309, 9455, 11545, 71579, 140849, 357895, 704245, 4366319, 21831595]

約数ペア:

[(1, 21831595), (5, 4366319), (31, 704245), (61, 357895), (155, 140849), (305, 71579), (1891, 11545), (2309, 9455)]