21573495

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3449}}^1$

素因数の和:3599

約数の個数: 24

約数和(自身を含む): 37674000

約数和(自身を除く): 16100505

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 3449, 6255, 10347, 17245, 31041, 51735, 155205, 479411, 1438233, 2397055, 4314699, 7191165, 21573495]

約数ペア:

[(1, 21573495), (3, 7191165), (5, 4314699), (9, 2397055), (15, 1438233), (45, 479411), (139, 155205), (417, 51735), (695, 31041), (1251, 17245), (2085, 10347), (3449, 6255)]