20490693

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{2731}}^1$

素因数の和:2836

約数の個数: 16

約数和(自身を含む): 28456512

約数和(自身を除く): 7965819

約数列:

[1, 3, 41, 61, 123, 183, 2501, 2731, 7503, 8193, 111971, 166591, 335913, 499773, 6830231, 20490693]

約数ペア:

[(1, 20490693), (3, 6830231), (41, 499773), (61, 335913), (123, 166591), (183, 111971), (2501, 8193), (2731, 7503)]