21746571

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2003}}^1$

素因数の和:2071

約数の個数: 32

約数和(自身を含む): 36937728

約数和(自身を除く): 15191157

約数列:

[1, 3, 7, 11, 21, 33, 47, 77, 141, 231, 329, 517, 987, 1551, 2003, 3619, 6009, 10857, 14021, 22033, 42063, 66099, 94141, 154231, 282423, 462693, 658987, 1035551, 1976961, 3106653, 7248857, 21746571]

約数ペア:

[(1, 21746571), (3, 7248857), (7, 3106653), (11, 1976961), (21, 1035551), (33, 658987), (47, 462693), (77, 282423), (141, 154231), (231, 94141), (329, 66099), (517, 42063), (987, 22033), (1551, 14021), (2003, 10857), (3619, 6009)]