18918508

素因数分解:

$2^2\times 7^3\times {\mathrm{13789}}^1$

素因数の和:13814

約数の個数: 24

約数和(自身を含む): 38612000

約数和(自身を除く): 19693492

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 13789, 27578, 55156, 96523, 193046, 386092, 675661, 1351322, 2702644, 4729627, 9459254, 18918508]

約数ペア:

[(1, 18918508), (2, 9459254), (4, 4729627), (7, 2702644), (14, 1351322), (28, 675661), (49, 386092), (98, 193046), (196, 96523), (343, 55156), (686, 27578), (1372, 13789)]