21911123

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2063}}^1$

素因数の和:2138

約数の個数: 16

約数和(自身を含む): 25428480

約数和(自身を除く): 3517357

約数列:

[1, 13, 19, 43, 247, 559, 817, 2063, 10621, 26819, 39197, 88709, 509561, 1153217, 1685471, 21911123]

約数ペア:

[(1, 21911123), (13, 1685471), (19, 1153217), (43, 509561), (247, 88709), (559, 39197), (817, 26819), (2063, 10621)]