21090270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{727}}^1\times {\mathrm{967}}^1$

素因数の和:1704

約数の個数: 32

約数和(自身を含む): 50738688

約数和(自身を除く): 29648418

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 727, 967, 1454, 1934, 2181, 2901, 3635, 4362, 4835, 5802, 7270, 9670, 10905, 14505, 21810, 29010, 703009, 1406018, 2109027, 3515045, 4218054, 7030090, 10545135, 21090270]

約数ペア:

[(1, 21090270), (2, 10545135), (3, 7030090), (5, 4218054), (6, 3515045), (10, 2109027), (15, 1406018), (30, 703009), (727, 29010), (967, 21810), (1454, 14505), (1934, 10905), (2181, 9670), (2901, 7270), (3635, 5802), (4362, 4835)]