21171370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17497}}^1$

素因数の和:17526

約数の個数: 24

約数和(自身を含む): 41890212

約数和(自身を除く): 20718842

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 17497, 34994, 87485, 174970, 192467, 384934, 962335, 1924670, 2117137, 4234274, 10585685, 21171370]

約数ペア:

[(1, 21171370), (2, 10585685), (5, 4234274), (10, 2117137), (11, 1924670), (22, 962335), (55, 384934), (110, 192467), (121, 174970), (242, 87485), (605, 34994), (1210, 17497)]