21032395

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{1987}}^1$

素因数の和:2094

約数の個数: 16

約数和(自身を含む): 26480160

約数和(自身を除く): 5447765

約数列:

[1, 5, 29, 73, 145, 365, 1987, 2117, 9935, 10585, 57623, 145051, 288115, 725255, 4206479, 21032395]

約数ペア:

[(1, 21032395), (5, 4206479), (29, 725255), (73, 288115), (145, 145051), (365, 57623), (1987, 10585), (2117, 9935)]