15391205

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{4211}}^1$

素因数の和:4276

約数の個数: 16

約数和(自身を含む): 20015424

約数和(自身を除く): 4624219

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 4211, 21055, 71587, 181073, 357935, 905365, 3078241, 15391205]

約数ペア:

[(1, 15391205), (5, 3078241), (17, 905365), (43, 357935), (85, 181073), (215, 71587), (731, 21055), (3655, 4211)]