21899495

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{7949}}^1$

素因数の和:8002

約数の個数: 16

約数和(自身を含む): 28620000

約数和(自身を除く): 6720505

約数列:

[1, 5, 19, 29, 95, 145, 551, 2755, 7949, 39745, 151031, 230521, 755155, 1152605, 4379899, 21899495]

約数ペア:

[(1, 21899495), (5, 4379899), (19, 1152605), (29, 755155), (95, 230521), (145, 151031), (551, 39745), (2755, 7949)]