21603673

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5521}}^1$

素因数の和:5584

約数の個数: 16

約数和(自身を含む): 27212416

約数和(自身を除く): 5608743

約数列:

[1, 7, 13, 43, 91, 301, 559, 3913, 5521, 38647, 71773, 237403, 502411, 1661821, 3086239, 21603673]

約数ペア:

[(1, 21603673), (7, 3086239), (13, 1661821), (43, 502411), (91, 237403), (301, 71773), (559, 38647), (3913, 5521)]