20784183

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{8317}}^1$

素因数の和:8351

約数の個数: 24

約数和(自身を含む): 34137072

約数和(自身を除く): 13352889

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 8317, 24951, 58219, 141389, 174657, 407533, 424167, 989723, 1222599, 2969169, 6928061, 20784183]

約数ペア:

[(1, 20784183), (3, 6928061), (7, 2969169), (17, 1222599), (21, 989723), (49, 424167), (51, 407533), (119, 174657), (147, 141389), (357, 58219), (833, 24951), (2499, 8317)]