21084075

素因数分解:

$3^2\times 5^2\times {\mathrm{83}}^1\times {\mathrm{1129}}^1$

素因数の和:1228

約数の個数: 36

約数和(自身を含む): 38252760

約数和(自身を除く): 17168685

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 83, 225, 249, 415, 747, 1129, 1245, 2075, 3387, 3735, 5645, 6225, 10161, 16935, 18675, 28225, 50805, 84675, 93707, 254025, 281121, 468535, 843363, 1405605, 2342675, 4216815, 7028025, 21084075]

約数ペア:

[(1, 21084075), (3, 7028025), (5, 4216815), (9, 2342675), (15, 1405605), (25, 843363), (45, 468535), (75, 281121), (83, 254025), (225, 93707), (249, 84675), (415, 50805), (747, 28225), (1129, 18675), (1245, 16935), (2075, 10161), (3387, 6225), (3735, 5645)]