20561233

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1031}}^1$

素因数の和:1093

約数の個数: 24

約数和(自身を含む): 26823744

約数和(自身を除く): 6262511

約数列:

[1, 7, 11, 37, 49, 77, 259, 407, 539, 1031, 1813, 2849, 7217, 11341, 19943, 38147, 50519, 79387, 267029, 419617, 555709, 1869203, 2937319, 20561233]

約数ペア:

[(1, 20561233), (7, 2937319), (11, 1869203), (37, 555709), (49, 419617), (77, 267029), (259, 79387), (407, 50519), (539, 38147), (1031, 19943), (1813, 11341), (2849, 7217)]