12856415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17981}}^1$

素因数の和:18010

約数の個数: 16

約数和(自身を含む): 18125856

約数和(自身を除く): 5269441

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 17981, 89905, 197791, 233753, 988955, 1168765, 2571283, 12856415]

約数ペア:

[(1, 12856415), (5, 2571283), (11, 1168765), (13, 988955), (55, 233753), (65, 197791), (143, 89905), (715, 17981)]