20820195

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42061}}^1$

素因数の和:42083

約数の個数: 24

約数和(自身を含む): 39370032

約数和(自身を除く): 18549837

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 42061, 126183, 210305, 378549, 462671, 630915, 1388013, 1892745, 2313355, 4164039, 6940065, 20820195]

約数ペア:

[(1, 20820195), (3, 6940065), (5, 4164039), (9, 2313355), (11, 1892745), (15, 1388013), (33, 630915), (45, 462671), (55, 378549), (99, 210305), (165, 126183), (495, 42061)]