21186968

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3391}}^1$

素因数の和:3479

約数の個数: 32

約数和(自身を含む): 43960320

約数和(自身を除く): 22773352

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 142, 284, 568, 781, 1562, 3124, 3391, 6248, 6782, 13564, 27128, 37301, 74602, 149204, 240761, 298408, 481522, 963044, 1926088, 2648371, 5296742, 10593484, 21186968]

約数ペア:

[(1, 21186968), (2, 10593484), (4, 5296742), (8, 2648371), (11, 1926088), (22, 963044), (44, 481522), (71, 298408), (88, 240761), (142, 149204), (284, 74602), (568, 37301), (781, 27128), (1562, 13564), (3124, 6782), (3391, 6248)]