21845072

素因数分解:

$2^4\times {\mathrm{683}}^1\times {\mathrm{1999}}^1$

素因数の和:2690

約数の個数: 20

約数和(自身を含む): 42408000

約数和(自身を除く): 20562928

約数列:

[1, 2, 4, 8, 16, 683, 1366, 1999, 2732, 3998, 5464, 7996, 10928, 15992, 31984, 1365317, 2730634, 5461268, 10922536, 21845072]

約数ペア:

[(1, 21845072), (2, 10922536), (4, 5461268), (8, 2730634), (16, 1365317), (683, 31984), (1366, 15992), (1999, 10928), (2732, 7996), (3998, 5464)]