21279864

素因数分解:

$2^3\times 3^1\times {\mathrm{311}}^1\times {\mathrm{2851}}^1$

素因数の和:3171

約数の個数: 32

約数和(自身を含む): 53389440

約数和(自身を除く): 32109576

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 311, 622, 933, 1244, 1866, 2488, 2851, 3732, 5702, 7464, 8553, 11404, 17106, 22808, 34212, 68424, 886661, 1773322, 2659983, 3546644, 5319966, 7093288, 10639932, 21279864]

約数ペア:

[(1, 21279864), (2, 10639932), (3, 7093288), (4, 5319966), (6, 3546644), (8, 2659983), (12, 1773322), (24, 886661), (311, 68424), (622, 34212), (933, 22808), (1244, 17106), (1866, 11404), (2488, 8553), (2851, 7464), (3732, 5702)]