20161955

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{8941}}^1$

素因数の和:8998

約数の個数: 16

約数和(自身を含む): 27040608

約数和(自身を除く): 6878653

約数列:

[1, 5, 11, 41, 55, 205, 451, 2255, 8941, 44705, 98351, 366581, 491755, 1832905, 4032391, 20161955]

約数ペア:

[(1, 20161955), (5, 4032391), (11, 1832905), (41, 491755), (55, 366581), (205, 98351), (451, 44705), (2255, 8941)]