21202160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37861}}^1$

素因数の和:37881

約数の個数: 40

約数和(自身を含む): 56338656

約数和(自身を除く): 35136496

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37861, 75722, 151444, 189305, 265027, 302888, 378610, 530054, 605776, 757220, 1060108, 1325135, 1514440, 2120216, 2650270, 3028880, 4240432, 5300540, 10601080, 21202160]

約数ペア:

[(1, 21202160), (2, 10601080), (4, 5300540), (5, 4240432), (7, 3028880), (8, 2650270), (10, 2120216), (14, 1514440), (16, 1325135), (20, 1060108), (28, 757220), (35, 605776), (40, 530054), (56, 378610), (70, 302888), (80, 265027), (112, 189305), (140, 151444), (280, 75722), (560, 37861)]