18873995

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31721}}^1$

素因数の和:31750

約数の個数: 16

約数和(自身を含む): 27407808

約数和(自身を除く): 8533813

約数列:

[1, 5, 7, 17, 35, 85, 119, 595, 31721, 158605, 222047, 539257, 1110235, 2696285, 3774799, 18873995]

約数ペア:

[(1, 18873995), (5, 3774799), (7, 2696285), (17, 1110235), (35, 539257), (85, 222047), (119, 158605), (595, 31721)]