18517051

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:283

約数の個数: 24

約数和(自身を含む): 22695120

約数和(自身を除く): 4178069

約数列:

[1, 7, 29, 49, 83, 157, 203, 581, 1099, 1421, 2407, 4067, 4553, 7693, 13031, 16849, 31871, 91217, 117943, 223097, 377899, 638519, 2645293, 18517051]

約数ペア:

[(1, 18517051), (7, 2645293), (29, 638519), (49, 377899), (83, 223097), (157, 117943), (203, 91217), (581, 31871), (1099, 16849), (1421, 13031), (2407, 7693), (4067, 4553)]