21173544

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{977}}^1$

素因数の和:1039

約数の個数: 96

約数和(自身を含む): 67129920

約数和(自身を除く): 45956376

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 43, 56, 63, 72, 84, 86, 126, 129, 168, 172, 252, 258, 301, 344, 387, 504, 516, 602, 774, 903, 977, 1032, 1204, 1548, 1806, 1954, 2408, 2709, 2931, 3096, 3612, 3908, 5418, 5862, 6839, 7224, 7816, 8793, 10836, 11724, 13678, 17586, 20517, 21672, 23448, 27356, 35172, 41034, 42011, 54712, 61551, 70344, 82068, 84022, 123102, 126033, 164136, 168044, 246204, 252066, 294077, 336088, 378099, 492408, 504132, 588154, 756198, 882231, 1008264, 1176308, 1512396, 1764462, 2352616, 2646693, 3024792, 3528924, 5293386, 7057848, 10586772, 21173544]

約数ペア:

[(1, 21173544), (2, 10586772), (3, 7057848), (4, 5293386), (6, 3528924), (7, 3024792), (8, 2646693), (9, 2352616), (12, 1764462), (14, 1512396), (18, 1176308), (21, 1008264), (24, 882231), (28, 756198), (36, 588154), (42, 504132), (43, 492408), (56, 378099), (63, 336088), (72, 294077), (84, 252066), (86, 246204), (126, 168044), (129, 164136), (168, 126033), (172, 123102), (252, 84022), (258, 82068), (301, 70344), (344, 61551), (387, 54712), (504, 42011), (516, 41034), (602, 35172), (774, 27356), (903, 23448), (977, 21672), (1032, 20517), (1204, 17586), (1548, 13678), (1806, 11724), (1954, 10836), (2408, 8793), (2709, 7816), (2931, 7224), (3096, 6839), (3612, 5862), (3908, 5418)]