18865870

素因数分解:

$2^1\times 5^1\times {\mathrm{977}}^1\times {\mathrm{1931}}^1$

素因数の和:2915

約数の個数: 16

約数和(自身を含む): 34010928

約数和(自身を除く): 15145058

約数列:

[1, 2, 5, 10, 977, 1931, 1954, 3862, 4885, 9655, 9770, 19310, 1886587, 3773174, 9432935, 18865870]

約数ペア:

[(1, 18865870), (2, 9432935), (5, 3773174), (10, 1886587), (977, 19310), (1931, 9770), (1954, 9655), (3862, 4885)]