996905

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 1503432

約数和(自身を除く): 506527

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 313, 455, 637, 1565, 2191, 3185, 4069, 10955, 15337, 20345, 28483, 76685, 142415, 199381, 996905]

約数ペア:

[(1, 996905), (5, 199381), (7, 142415), (13, 76685), (35, 28483), (49, 20345), (65, 15337), (91, 10955), (245, 4069), (313, 3185), (455, 2191), (637, 1565)]