21839075

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2051

約数の個数: 24

約数和(自身を含む): 29760000

約数和(自身を除く): 7920925

約数列:

[1, 5, 19, 23, 25, 95, 115, 437, 475, 575, 1999, 2185, 9995, 10925, 37981, 45977, 49975, 189905, 229885, 873563, 949525, 1149425, 4367815, 21839075]

約数ペア:

[(1, 21839075), (5, 4367815), (19, 1149425), (23, 949525), (25, 873563), (95, 229885), (115, 189905), (437, 49975), (475, 45977), (575, 37981), (1999, 10925), (2185, 9995)]