21886225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2239}}^1$

素因数の和:2289

約数の個数: 24

約数和(自身を含む): 29998080

約数和(自身を除く): 8111855

約数列:

[1, 5, 17, 23, 25, 85, 115, 391, 425, 575, 1955, 2239, 9775, 11195, 38063, 51497, 55975, 190315, 257485, 875449, 951575, 1287425, 4377245, 21886225]

約数ペア:

[(1, 21886225), (5, 4377245), (17, 1287425), (23, 951575), (25, 875449), (85, 257485), (115, 190315), (391, 55975), (425, 51497), (575, 38063), (1955, 11195), (2239, 9775)]