21592275

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 37997568

約数和(自身を除く): 16405293

約数列:

[1, 3, 5, 15, 25, 31, 37, 75, 93, 111, 155, 185, 251, 465, 555, 753, 775, 925, 1147, 1255, 2325, 2775, 3441, 3765, 5735, 6275, 7781, 9287, 17205, 18825, 23343, 27861, 28675, 38905, 46435, 86025, 116715, 139305, 194525, 232175, 287897, 583575, 696525, 863691, 1439485, 4318455, 7197425, 21592275]

約数ペア:

[(1, 21592275), (3, 7197425), (5, 4318455), (15, 1439485), (25, 863691), (31, 696525), (37, 583575), (75, 287897), (93, 232175), (111, 194525), (155, 139305), (185, 116715), (251, 86025), (465, 46435), (555, 38905), (753, 28675), (775, 27861), (925, 23343), (1147, 18825), (1255, 17205), (2325, 9287), (2775, 7781), (3441, 6275), (3765, 5735)]