28712355

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{8821}}^1$

素因数の和:8867

約数の個数: 32

約数和(自身を含む): 54202368

約数和(自身を除く): 25490013

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085, 3255, 8821, 26463, 44105, 61747, 132315, 185241, 273451, 308735, 820353, 926205, 1367255, 1914157, 4101765, 5742471, 9570785, 28712355]

約数ペア:

[(1, 28712355), (3, 9570785), (5, 5742471), (7, 4101765), (15, 1914157), (21, 1367255), (31, 926205), (35, 820353), (93, 308735), (105, 273451), (155, 185241), (217, 132315), (465, 61747), (651, 44105), (1085, 26463), (3255, 8821)]