18008428

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{1123}}^1$

素因数の和:1357

約数の個数: 24

約数和(自身を含む): 33360320

約数和(自身を除く): 15351892

約数列:

[1, 2, 4, 19, 38, 76, 211, 422, 844, 1123, 2246, 4009, 4492, 8018, 16036, 21337, 42674, 85348, 236953, 473906, 947812, 4502107, 9004214, 18008428]

約数ペア:

[(1, 18008428), (2, 9004214), (4, 4502107), (19, 947812), (38, 473906), (76, 236953), (211, 85348), (422, 42674), (844, 21337), (1123, 16036), (2246, 8018), (4009, 4492)]