21660003

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{577}}^1$

素因数の和:723

約数の個数: 24

約数和(自身を含む): 32400368

約数和(自身を除く): 10740365

約数列:

[1, 3, 9, 43, 97, 129, 291, 387, 577, 873, 1731, 4171, 5193, 12513, 24811, 37539, 55969, 74433, 167907, 223299, 503721, 2406667, 7220001, 21660003]

約数ペア:

[(1, 21660003), (3, 7220001), (9, 2406667), (43, 503721), (97, 223299), (129, 167907), (291, 74433), (387, 55969), (577, 37539), (873, 24811), (1731, 12513), (4171, 5193)]