21665952

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{977}}^1$

素因数の和:1011

約数の個数: 144

約数和(自身を含む): 76894272

約数和(自身を除く): 55228320

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 28, 32, 33, 36, 42, 44, 48, 56, 63, 66, 72, 77, 84, 88, 96, 99, 112, 126, 132, 144, 154, 168, 176, 198, 224, 231, 252, 264, 288, 308, 336, 352, 396, 462, 504, 528, 616, 672, 693, 792, 924, 977, 1008, 1056, 1232, 1386, 1584, 1848, 1954, 2016, 2464, 2772, 2931, 3168, 3696, 3908, 5544, 5862, 6839, 7392, 7816, 8793, 10747, 11088, 11724, 13678, 15632, 17586, 20517, 21494, 22176, 23448, 27356, 31264, 32241, 35172, 41034, 42988, 46896, 54712, 61551, 64482, 70344, 75229, 82068, 85976, 93792, 96723, 109424, 123102, 128964, 140688, 150458, 164136, 171952, 193446, 218848, 225687, 246204, 257928, 281376, 300916, 328272, 343904, 386892, 451374, 492408, 515856, 601832, 656544, 677061, 773784, 902748, 984816, 1031712, 1203664, 1354122, 1547568, 1805496, 1969632, 2407328, 2708244, 3095136, 3610992, 5416488, 7221984, 10832976, 21665952]

約数ペア:

[(1, 21665952), (2, 10832976), (3, 7221984), (4, 5416488), (6, 3610992), (7, 3095136), (8, 2708244), (9, 2407328), (11, 1969632), (12, 1805496), (14, 1547568), (16, 1354122), (18, 1203664), (21, 1031712), (22, 984816), (24, 902748), (28, 773784), (32, 677061), (33, 656544), (36, 601832), (42, 515856), (44, 492408), (48, 451374), (56, 386892), (63, 343904), (66, 328272), (72, 300916), (77, 281376), (84, 257928), (88, 246204), (96, 225687), (99, 218848), (112, 193446), (126, 171952), (132, 164136), (144, 150458), (154, 140688), (168, 128964), (176, 123102), (198, 109424), (224, 96723), (231, 93792), (252, 85976), (264, 82068), (288, 75229), (308, 70344), (336, 64482), (352, 61551), (396, 54712), (462, 46896), (504, 42988), (528, 41034), (616, 35172), (672, 32241), (693, 31264), (792, 27356), (924, 23448), (977, 22176), (1008, 21494), (1056, 20517), (1232, 17586), (1386, 15632), (1584, 13678), (1848, 11724), (1954, 11088), (2016, 10747), (2464, 8793), (2772, 7816), (2931, 7392), (3168, 6839), (3696, 5862), (3908, 5544)]