21800856

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:325

約数の個数: 128

約数和(自身を含む): 69672960

約数和(自身を除く): 47872104

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 42, 44, 47, 56, 66, 77, 84, 88, 94, 132, 141, 154, 168, 188, 231, 251, 264, 282, 308, 329, 376, 462, 502, 517, 564, 616, 658, 753, 924, 987, 1004, 1034, 1128, 1316, 1506, 1551, 1757, 1848, 1974, 2008, 2068, 2632, 2761, 3012, 3102, 3514, 3619, 3948, 4136, 5271, 5522, 6024, 6204, 7028, 7238, 7896, 8283, 10542, 10857, 11044, 11797, 12408, 14056, 14476, 16566, 19327, 21084, 21714, 22088, 23594, 28952, 33132, 35391, 38654, 42168, 43428, 47188, 57981, 66264, 70782, 77308, 82579, 86856, 94376, 115962, 129767, 141564, 154616, 165158, 231924, 247737, 259534, 283128, 330316, 389301, 463848, 495474, 519068, 660632, 778602, 908369, 990948, 1038136, 1557204, 1816738, 1981896, 2725107, 3114408, 3633476, 5450214, 7266952, 10900428, 21800856]

約数ペア:

[(1, 21800856), (2, 10900428), (3, 7266952), (4, 5450214), (6, 3633476), (7, 3114408), (8, 2725107), (11, 1981896), (12, 1816738), (14, 1557204), (21, 1038136), (22, 990948), (24, 908369), (28, 778602), (33, 660632), (42, 519068), (44, 495474), (47, 463848), (56, 389301), (66, 330316), (77, 283128), (84, 259534), (88, 247737), (94, 231924), (132, 165158), (141, 154616), (154, 141564), (168, 129767), (188, 115962), (231, 94376), (251, 86856), (264, 82579), (282, 77308), (308, 70782), (329, 66264), (376, 57981), (462, 47188), (502, 43428), (517, 42168), (564, 38654), (616, 35391), (658, 33132), (753, 28952), (924, 23594), (987, 22088), (1004, 21714), (1034, 21084), (1128, 19327), (1316, 16566), (1506, 14476), (1551, 14056), (1757, 12408), (1848, 11797), (1974, 11044), (2008, 10857), (2068, 10542), (2632, 8283), (2761, 7896), (3012, 7238), (3102, 7028), (3514, 6204), (3619, 6024), (3948, 5522), (4136, 5271)]