81237915

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{164117}}^1$

素因数の和:164139

約数の個数: 24

約数和(自身を含む): 153614448

約数和(自身を除く): 72376533

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 164117, 492351, 820585, 1477053, 1805287, 2461755, 5415861, 7385265, 9026435, 16247583, 27079305, 81237915]

約数ペア:

[(1, 81237915), (3, 27079305), (5, 16247583), (9, 9026435), (11, 7385265), (15, 5415861), (33, 2461755), (45, 1805287), (55, 1477053), (99, 820585), (165, 492351), (495, 164117)]