20621810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{187471}}^1$

素因数の和:187489

約数の個数: 16

約数和(自身を含む): 40493952

約数和(自身を除く): 19872142

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 187471, 374942, 937355, 1874710, 2062181, 4124362, 10310905, 20621810]

約数ペア:

[(1, 20621810), (2, 10310905), (5, 4124362), (10, 2062181), (11, 1874710), (22, 937355), (55, 374942), (110, 187471)]