21157503

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{5843}}^1$

素因数の和:5934

約数の個数: 16

約数和(自身を含む): 30295296

約数和(自身を除く): 9137793

約数列:

[1, 3, 17, 51, 71, 213, 1207, 3621, 5843, 17529, 99331, 297993, 414853, 1244559, 7052501, 21157503]

約数ペア:

[(1, 21157503), (3, 7052501), (17, 1244559), (51, 414853), (71, 297993), (213, 99331), (1207, 17529), (3621, 5843)]