20315703

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{967}}^1$

素因数の和:1166

約数の個数: 16

約数和(自身を含む): 27878400

約数和(自身を除く): 7562697

約数列:

[1, 3, 47, 141, 149, 447, 967, 2901, 7003, 21009, 45449, 136347, 144083, 432249, 6771901, 20315703]

約数ペア:

[(1, 20315703), (3, 6771901), (47, 432249), (141, 144083), (149, 136347), (447, 45449), (967, 21009), (2901, 7003)]