21722210

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{52981}}^1$

素因数の和:53029

約数の個数: 16

約数和(自身を含む): 40054392

約数和(自身を除く): 18332182

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 52981, 105962, 264905, 529810, 2172221, 4344442, 10861105, 21722210]

約数ペア:

[(1, 21722210), (2, 10861105), (5, 4344442), (10, 2172221), (41, 529810), (82, 264905), (205, 105962), (410, 52981)]