21078937

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{773}}^1$

素因数の和:888

約数の個数: 16

約数和(自身を含む): 24000192

約数和(自身を除く): 2921255

約数列:

[1, 11, 37, 67, 407, 737, 773, 2479, 8503, 27269, 28601, 51791, 314611, 569701, 1916267, 21078937]

約数ペア:

[(1, 21078937), (11, 1916267), (37, 569701), (67, 314611), (407, 51791), (737, 28601), (773, 27269), (2479, 8503)]