20345765

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11933}}^1$

素因数の和:11980

約数の個数: 16

約数和(自身を含む): 27495936

約数和(自身を除く): 7150171

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 11933, 59665, 131263, 369923, 656315, 1849615, 4069153, 20345765]

約数ペア:

[(1, 20345765), (5, 4069153), (11, 1849615), (31, 656315), (55, 369923), (155, 131263), (341, 59665), (1705, 11933)]