18687879

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{17449}}^1$

素因数の和:17479

約数の個数: 24

約数和(自身を含む): 32666400

約数和(自身を除く): 13978521

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 17449, 52347, 122143, 157041, 296633, 366429, 889899, 1099287, 2076431, 2669697, 6229293, 18687879]

約数ペア:

[(1, 18687879), (3, 6229293), (7, 2669697), (9, 2076431), (17, 1099287), (21, 889899), (51, 366429), (63, 296633), (119, 157041), (153, 122143), (357, 52347), (1071, 17449)]