19811585

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{1949}}^1$

素因数の和:2080

約数の個数: 16

約数和(自身を含む): 25272000

約数和(自身を除く): 5460415

約数列:

[1, 5, 19, 95, 107, 535, 1949, 2033, 9745, 10165, 37031, 185155, 208543, 1042715, 3962317, 19811585]

約数ペア:

[(1, 19811585), (5, 3962317), (19, 1042715), (95, 208543), (107, 185155), (535, 37031), (1949, 10165), (2033, 9745)]