21395166

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{6379}}^1$

素因数の和:6440

約数の個数: 32

約数和(自身を含む): 47160960

約数和(自身を除く): 25765794

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 129, 258, 559, 1118, 1677, 3354, 6379, 12758, 19137, 38274, 82927, 165854, 248781, 274297, 497562, 548594, 822891, 1645782, 3565861, 7131722, 10697583, 21395166]

約数ペア:

[(1, 21395166), (2, 10697583), (3, 7131722), (6, 3565861), (13, 1645782), (26, 822891), (39, 548594), (43, 497562), (78, 274297), (86, 248781), (129, 165854), (258, 82927), (559, 38274), (1118, 19137), (1677, 12758), (3354, 6379)]