20415159

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{2897}}^1$

素因数の和:2941

約数の個数: 24

約数和(自身を含む): 31646160

約数和(自身を除く): 11231001

約数列:

[1, 3, 9, 27, 29, 81, 87, 243, 261, 783, 2349, 2897, 7047, 8691, 26073, 78219, 84013, 234657, 252039, 703971, 756117, 2268351, 6805053, 20415159]

約数ペア:

[(1, 20415159), (3, 6805053), (9, 2268351), (27, 756117), (29, 703971), (81, 252039), (87, 234657), (243, 84013), (261, 78219), (783, 26073), (2349, 8691), (2897, 7047)]