205695

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{653}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 408096

約数和(自身を除く): 202401

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 653, 1959, 3265, 4571, 5877, 9795, 13713, 22855, 29385, 41139, 68565, 205695]

約数ペア:

[(1, 205695), (3, 68565), (5, 41139), (7, 29385), (9, 22855), (15, 13713), (21, 9795), (35, 5877), (45, 4571), (63, 3265), (105, 1959), (315, 653)]