19661391

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{1061}}^1$

素因数の和:1167

約数の個数: 24

約数和(自身を含む): 29820960

約数和(自身を除く): 10159569

約数列:

[1, 3, 9, 29, 71, 87, 213, 261, 639, 1061, 2059, 3183, 6177, 9549, 18531, 30769, 75331, 92307, 225993, 276921, 677979, 2184599, 6553797, 19661391]

約数ペア:

[(1, 19661391), (3, 6553797), (9, 2184599), (29, 677979), (71, 276921), (87, 225993), (213, 92307), (261, 75331), (639, 30769), (1061, 18531), (2059, 9549), (3183, 6177)]