21139620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{352327}}^1$

素因数の和:352339

約数の個数: 24

約数和(自身を含む): 59191104

約数和(自身を除く): 38051484

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 352327, 704654, 1056981, 1409308, 1761635, 2113962, 3523270, 4227924, 5284905, 7046540, 10569810, 21139620]

約数ペア:

[(1, 21139620), (2, 10569810), (3, 7046540), (4, 5284905), (5, 4227924), (6, 3523270), (10, 2113962), (12, 1761635), (15, 1409308), (20, 1056981), (30, 704654), (60, 352327)]