21085766

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{26161}}^1$

素因数の和:26207

約数の個数: 16

約数和(自身を含む): 35161728

約数和(自身を除く): 14075962

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 26161, 52322, 340093, 680186, 810991, 1621982, 10542883, 21085766]

約数ペア:

[(1, 21085766), (2, 10542883), (13, 1621982), (26, 810991), (31, 680186), (62, 340093), (403, 52322), (806, 26161)]