20808663

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{1693}}^1$

素因数の和:1954

約数の個数: 16

約数和(自身を含む): 29516256

約数和(自身を除く): 8707593

約数列:

[1, 3, 17, 51, 241, 723, 1693, 4097, 5079, 12291, 28781, 86343, 408013, 1224039, 6936221, 20808663]

約数ペア:

[(1, 20808663), (3, 6936221), (17, 1224039), (51, 408013), (241, 86343), (723, 28781), (1693, 12291), (4097, 5079)]