19964205

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{8699}}^1$

素因数の和:8730

約数の個数: 32

約数和(自身を含む): 37584000

約数和(自身を除く): 17619795

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 8699, 26097, 43495, 78291, 130485, 147883, 234873, 391455, 443649, 739415, 1174365, 1330947, 2218245, 3992841, 6654735, 19964205]

約数ペア:

[(1, 19964205), (3, 6654735), (5, 3992841), (9, 2218245), (15, 1330947), (17, 1174365), (27, 739415), (45, 443649), (51, 391455), (85, 234873), (135, 147883), (153, 130485), (255, 78291), (459, 43495), (765, 26097), (2295, 8699)]