20899851

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{58543}}^1$

素因数の和:58570

約数の個数: 16

約数和(自身を含む): 33721344

約数和(自身を除く): 12821493

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 58543, 175629, 409801, 995231, 1229403, 2985693, 6966617, 20899851]

約数ペア:

[(1, 20899851), (3, 6966617), (7, 2985693), (17, 1229403), (21, 995231), (51, 409801), (119, 175629), (357, 58543)]