19952415

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{653}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 39993408

約数和(自身を除く): 20040993

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 97, 105, 291, 315, 485, 653, 679, 873, 1455, 1959, 2037, 3265, 3395, 4365, 4571, 5877, 6111, 9795, 10185, 13713, 22855, 29385, 30555, 41139, 63341, 68565, 190023, 205695, 316705, 443387, 570069, 950115, 1330161, 2216935, 2850345, 3990483, 6650805, 19952415]

約数ペア:

[(1, 19952415), (3, 6650805), (5, 3990483), (7, 2850345), (9, 2216935), (15, 1330161), (21, 950115), (35, 570069), (45, 443387), (63, 316705), (97, 205695), (105, 190023), (291, 68565), (315, 63341), (485, 41139), (653, 30555), (679, 29385), (873, 22855), (1455, 13713), (1959, 10185), (2037, 9795), (3265, 6111), (3395, 5877), (4365, 4571)]