20117765

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{683}}^1$

素因数の和:868

約数の個数: 16

約数和(自身を含む): 24919488

約数和(自身を除く): 4801723

約数列:

[1, 5, 43, 137, 215, 683, 685, 3415, 5891, 29369, 29455, 93571, 146845, 467855, 4023553, 20117765]

約数ペア:

[(1, 20117765), (5, 4023553), (43, 467855), (137, 146845), (215, 93571), (683, 29455), (685, 29369), (3415, 5891)]