161857269

素因数分解:

$3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{28867}}^1$

素因数の和:28969

約数の個数: 24

約数和(自身を含む): 270204480

約数和(自身を除く): 108347211

約数列:

[1, 3, 7, 9, 21, 63, 89, 267, 623, 801, 1869, 5607, 28867, 86601, 202069, 259803, 606207, 1818621, 2569163, 7707489, 17984141, 23122467, 53952423, 161857269]

約数ペア:

[(1, 161857269), (3, 53952423), (7, 23122467), (9, 17984141), (21, 7707489), (63, 2569163), (89, 1818621), (267, 606207), (623, 259803), (801, 202069), (1869, 86601), (5607, 28867)]