18401943

素因数分解:

$3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{4153}}^1$

素因数の和:4374

約数の個数: 16

約数和(自身を含む): 28180736

約数和(自身を除く): 9778793

約数列:

[1, 3, 7, 21, 211, 633, 1477, 4153, 4431, 12459, 29071, 87213, 876283, 2628849, 6133981, 18401943]

約数ペア:

[(1, 18401943), (3, 6133981), (7, 2628849), (21, 876283), (211, 87213), (633, 29071), (1477, 12459), (4153, 4431)]