21181922

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{5519}}^1$

素因数の和:5641

約数の個数: 16

約数和(自身を含む): 33782400

約数和(自身を除く): 12600478

約数列:

[1, 2, 19, 38, 101, 202, 1919, 3838, 5519, 11038, 104861, 209722, 557419, 1114838, 10590961, 21181922]

約数ペア:

[(1, 21181922), (2, 10590961), (19, 1114838), (38, 557419), (101, 209722), (202, 104861), (1919, 11038), (3838, 5519)]