18419912

素因数分解:

$2^3\times 7^1\times {\mathrm{97}}^1\times {\mathrm{3391}}^1$

素因数の和:3501

約数の個数: 32

約数和(自身を含む): 39889920

約数和(自身を除く): 21470008

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 97, 194, 388, 679, 776, 1358, 2716, 3391, 5432, 6782, 13564, 23737, 27128, 47474, 94948, 189896, 328927, 657854, 1315708, 2302489, 2631416, 4604978, 9209956, 18419912]

約数ペア:

[(1, 18419912), (2, 9209956), (4, 4604978), (7, 2631416), (8, 2302489), (14, 1315708), (28, 657854), (56, 328927), (97, 189896), (194, 94948), (388, 47474), (679, 27128), (776, 23737), (1358, 13564), (2716, 6782), (3391, 5432)]