20019123

素因数分解:

$3^3\times {\mathrm{43}}^2\times {\mathrm{401}}^1$

素因数の和:496

約数の個数: 24

約数和(自身を含む): 30439440

約数和(自身を除く): 10420317

約数列:

[1, 3, 9, 27, 43, 129, 387, 401, 1161, 1203, 1849, 3609, 5547, 10827, 16641, 17243, 49923, 51729, 155187, 465561, 741449, 2224347, 6673041, 20019123]

約数ペア:

[(1, 20019123), (3, 6673041), (9, 2224347), (27, 741449), (43, 465561), (129, 155187), (387, 51729), (401, 49923), (1161, 17243), (1203, 16641), (1849, 10827), (3609, 5547)]