21789306

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:304

約数の個数: 96

約数和(自身を含む): 59904000

約数和(自身を除く): 38114694

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 79, 99, 126, 154, 158, 198, 199, 231, 237, 398, 462, 474, 553, 597, 693, 711, 869, 1106, 1194, 1386, 1393, 1422, 1659, 1738, 1791, 2189, 2607, 2786, 3318, 3582, 4179, 4378, 4977, 5214, 6083, 6567, 7821, 8358, 9954, 12166, 12537, 13134, 15323, 15642, 15721, 18249, 19701, 25074, 30646, 31442, 36498, 39402, 45969, 47163, 54747, 91938, 94326, 109494, 110047, 137907, 141489, 172931, 220094, 275814, 282978, 330141, 345862, 518793, 660282, 990423, 1037586, 1210517, 1556379, 1980846, 2421034, 3112758, 3631551, 7263102, 10894653, 21789306]

約数ペア:

[(1, 21789306), (2, 10894653), (3, 7263102), (6, 3631551), (7, 3112758), (9, 2421034), (11, 1980846), (14, 1556379), (18, 1210517), (21, 1037586), (22, 990423), (33, 660282), (42, 518793), (63, 345862), (66, 330141), (77, 282978), (79, 275814), (99, 220094), (126, 172931), (154, 141489), (158, 137907), (198, 110047), (199, 109494), (231, 94326), (237, 91938), (398, 54747), (462, 47163), (474, 45969), (553, 39402), (597, 36498), (693, 31442), (711, 30646), (869, 25074), (1106, 19701), (1194, 18249), (1386, 15721), (1393, 15642), (1422, 15323), (1659, 13134), (1738, 12537), (1791, 12166), (2189, 9954), (2607, 8358), (2786, 7821), (3318, 6567), (3582, 6083), (4179, 5214), (4378, 4977)]