20902365

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42227}}^1$

素因数の和:42249

約数の個数: 24

約数和(自身を含む): 39525408

約数和(自身を除く): 18623043

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 42227, 126681, 211135, 380043, 464497, 633405, 1393491, 1900215, 2322485, 4180473, 6967455, 20902365]

約数ペア:

[(1, 20902365), (3, 6967455), (5, 4180473), (9, 2322485), (11, 1900215), (15, 1393491), (33, 633405), (45, 464497), (55, 380043), (99, 211135), (165, 126681), (495, 42227)]