18722949

素因数分解:

$3^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1901}}^1$

素因数の和:1985

約数の個数: 24

約数和(自身を含む): 29488608

約数和(自身を除く): 10765659

約数列:

[1, 3, 7, 21, 49, 67, 147, 201, 469, 1407, 1901, 3283, 5703, 9849, 13307, 39921, 93149, 127367, 279447, 382101, 891569, 2674707, 6240983, 18722949]

約数ペア:

[(1, 18722949), (3, 6240983), (7, 2674707), (21, 891569), (49, 382101), (67, 279447), (147, 127367), (201, 93149), (469, 39921), (1407, 13307), (1901, 9849), (3283, 5703)]