21937396

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{9811}}^1$

素因数の和:9871

約数の個数: 24

約数和(自身を含む): 42309344

約数和(自身を除く): 20371948

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 172, 559, 1118, 2236, 9811, 19622, 39244, 127543, 255086, 421873, 510172, 843746, 1687492, 5484349, 10968698, 21937396]

約数ペア:

[(1, 21937396), (2, 10968698), (4, 5484349), (13, 1687492), (26, 843746), (43, 510172), (52, 421873), (86, 255086), (172, 127543), (559, 39244), (1118, 19622), (2236, 9811)]