21282678

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{887}}^1$

素因数の和:969

約数の個数: 48

約数和(自身を含む): 48761856

約数和(自身を除く): 27479178

約数列:

[1, 2, 3, 6, 9, 18, 31, 43, 62, 86, 93, 129, 186, 258, 279, 387, 558, 774, 887, 1333, 1774, 2661, 2666, 3999, 5322, 7983, 7998, 11997, 15966, 23994, 27497, 38141, 54994, 76282, 82491, 114423, 164982, 228846, 247473, 343269, 494946, 686538, 1182371, 2364742, 3547113, 7094226, 10641339, 21282678]

約数ペア:

[(1, 21282678), (2, 10641339), (3, 7094226), (6, 3547113), (9, 2364742), (18, 1182371), (31, 686538), (43, 494946), (62, 343269), (86, 247473), (93, 228846), (129, 164982), (186, 114423), (258, 82491), (279, 76282), (387, 54994), (558, 38141), (774, 27497), (887, 23994), (1333, 15966), (1774, 11997), (2661, 7998), (2666, 7983), (3999, 5322)]