20091398

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{1951}}^1$

素因数の和:2243

約数の個数: 16

約数和(自身を含む): 31856640

約数和(自身を除く): 11765242

約数列:

[1, 2, 19, 38, 271, 542, 1951, 3902, 5149, 10298, 37069, 74138, 528721, 1057442, 10045699, 20091398]

約数ペア:

[(1, 20091398), (2, 10045699), (19, 1057442), (38, 528721), (271, 74138), (542, 37069), (1951, 10298), (3902, 5149)]