720907857

素因数分解:

$3^5\times {\mathrm{43}}^1\times {\mathrm{68993}}^1$

素因数の和:69051

約数の個数: 24

約数和(自身を含む): 1105007904

約数和(自身を除く): 384100047

約数列:

[1, 3, 9, 27, 43, 81, 129, 243, 387, 1161, 3483, 10449, 68993, 206979, 620937, 1862811, 2966699, 5588433, 8900097, 16765299, 26700291, 80100873, 240302619, 720907857]

約数ペア:

[(1, 720907857), (3, 240302619), (9, 80100873), (27, 26700291), (43, 16765299), (81, 8900097), (129, 5588433), (243, 2966699), (387, 1862811), (1161, 620937), (3483, 206979), (10449, 68993)]