1321455

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2381}}^1$

素因数の和:2426

約数の個数: 16

約数和(自身を含む): 2172384

約数和(自身を除く): 850929

約数列:

[1, 3, 5, 15, 37, 111, 185, 555, 2381, 7143, 11905, 35715, 88097, 264291, 440485, 1321455]

約数ペア:

[(1, 1321455), (3, 440485), (5, 264291), (15, 88097), (37, 35715), (111, 11905), (185, 7143), (555, 2381)]