128071839

素因数分解:

$3^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{7993}}^1$

素因数の和:8119

約数の個数: 24

約数和(自身を含む): 200489520

約数和(自身を除く): 72417681

約数列:

[1, 3, 7, 21, 49, 109, 147, 327, 763, 2289, 5341, 7993, 16023, 23979, 55951, 167853, 391657, 871237, 1174971, 2613711, 6098659, 18295977, 42690613, 128071839]

約数ペア:

[(1, 128071839), (3, 42690613), (7, 18295977), (21, 6098659), (49, 2613711), (109, 1174971), (147, 871237), (327, 391657), (763, 167853), (2289, 55951), (5341, 23979), (7993, 16023)]