19003205

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{523}}^1$

素因数の和:597

約数の個数: 24

約数和(自身を含む): 25315488

約数和(自身を除く): 6312283

約数列:

[1, 5, 13, 43, 65, 169, 215, 523, 559, 845, 2615, 2795, 6799, 7267, 22489, 33995, 36335, 88387, 112445, 292357, 441935, 1461785, 3800641, 19003205]

約数ペア:

[(1, 19003205), (5, 3800641), (13, 1461785), (43, 441935), (65, 292357), (169, 112445), (215, 88387), (523, 36335), (559, 33995), (845, 22489), (2615, 7267), (2795, 6799)]