20123090937

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{47}}^2\times {\mathrm{23539}}^1$

素因数の和:23682

約数の個数: 36

約数和(自身を含む): 30390234160

約数和(自身を除く): 10267143223

約数列:

[1, 3, 9, 43, 47, 129, 141, 387, 423, 2021, 2209, 6063, 6627, 18189, 19881, 23539, 70617, 94987, 211851, 284961, 854883, 1012177, 1106333, 3036531, 3318999, 9109593, 9956997, 47572319, 51997651, 142716957, 155992953, 428150871, 467978859, 2235898993, 6707696979, 20123090937]

約数ペア:

[(1, 20123090937), (3, 6707696979), (9, 2235898993), (43, 467978859), (47, 428150871), (129, 155992953), (141, 142716957), (387, 51997651), (423, 47572319), (2021, 9956997), (2209, 9109593), (6063, 3318999), (6627, 3036531), (18189, 1106333), (19881, 1012177), (23539, 854883), (70617, 284961), (94987, 211851)]