20961809

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{2857}}^1$

素因数の和:2920

約数の個数: 16

約数和(自身を含む): 24693120

約数和(自身を除く): 3731311

約数列:

[1, 11, 23, 29, 253, 319, 667, 2857, 7337, 31427, 65711, 82853, 722821, 911383, 1905619, 20961809]

約数ペア:

[(1, 20961809), (11, 1905619), (23, 911383), (29, 722821), (253, 82853), (319, 65711), (667, 31427), (2857, 7337)]