21182189

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1\times {\mathrm{439}}^1$

素因数の和:620

約数の個数: 16

約数和(自身を含む): 24879360

約数和(自身を除く): 3697171

約数列:

[1, 7, 61, 113, 427, 439, 791, 3073, 6893, 26779, 48251, 49607, 187453, 347249, 3026027, 21182189]

約数ペア:

[(1, 21182189), (7, 3026027), (61, 347249), (113, 187453), (427, 49607), (439, 48251), (791, 26779), (3073, 6893)]