20571815

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{919}}^1$

素因数の和:983

約数の個数: 24

約数和(自身を含む): 27898080

約数和(自身を除く): 7326265

約数列:

[1, 5, 11, 37, 55, 121, 185, 407, 605, 919, 2035, 4477, 4595, 10109, 22385, 34003, 50545, 111199, 170015, 374033, 555995, 1870165, 4114363, 20571815]

約数ペア:

[(1, 20571815), (5, 4114363), (11, 1870165), (37, 555995), (55, 374033), (121, 170015), (185, 111199), (407, 50545), (605, 34003), (919, 22385), (2035, 10109), (4477, 4595)]