66728818

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{28837}}^1$

素因数の和:28941

約数の個数: 16

約数和(自身を含む): 109007640

約数和(自身を除く): 42278822

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 28837, 57674, 374881, 749762, 2566493, 5132986, 33364409, 66728818]

約数ペア:

[(1, 66728818), (2, 33364409), (13, 5132986), (26, 2566493), (89, 749762), (178, 374881), (1157, 57674), (2314, 28837)]