21194393

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:217

約数の個数: 24

約数和(自身を含む): 25198560

約数和(自身を除く): 4004167

約数列:

[1, 11, 17, 59, 113, 187, 289, 649, 1003, 1243, 1921, 3179, 6667, 11033, 17051, 21131, 32657, 73337, 113339, 187561, 359227, 1246729, 1926763, 21194393]

約数ペア:

[(1, 21194393), (11, 1926763), (17, 1246729), (59, 359227), (113, 187561), (187, 113339), (289, 73337), (649, 32657), (1003, 21131), (1243, 17051), (1921, 11033), (3179, 6667)]