726757749

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{81649}}^1$

素因数の和:81721

約数の個数: 24

約数和(自身を含む): 1120891200

約数和(自身を除く): 394133451

約数列:

[1, 3, 9, 23, 43, 69, 129, 207, 387, 989, 2967, 8901, 81649, 244947, 734841, 1877927, 3510907, 5633781, 10532721, 16901343, 31598163, 80750861, 242252583, 726757749]

約数ペア:

[(1, 726757749), (3, 242252583), (9, 80750861), (23, 31598163), (43, 16901343), (69, 10532721), (129, 5633781), (207, 3510907), (387, 1877927), (989, 734841), (2967, 244947), (8901, 81649)]