21931866

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{431}}^1$

素因数の和:707

約数の個数: 48

約数和(自身を含む): 52161408

約数和(自身を除く): 30229542

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 257, 431, 514, 771, 862, 1293, 1542, 2313, 2586, 2827, 3879, 4626, 4741, 5654, 7758, 8481, 9482, 14223, 16962, 25443, 28446, 42669, 50886, 85338, 110767, 221534, 332301, 664602, 996903, 1218437, 1993806, 2436874, 3655311, 7310622, 10965933, 21931866]

約数ペア:

[(1, 21931866), (2, 10965933), (3, 7310622), (6, 3655311), (9, 2436874), (11, 1993806), (18, 1218437), (22, 996903), (33, 664602), (66, 332301), (99, 221534), (198, 110767), (257, 85338), (431, 50886), (514, 42669), (771, 28446), (862, 25443), (1293, 16962), (1542, 14223), (2313, 9482), (2586, 8481), (2827, 7758), (3879, 5654), (4626, 4741)]