215380485

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83969}}^1$

素因数の和:84002

約数の個数: 32

約数和(自身を含む): 403056000

約数和(自身を除く): 187675515

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 83969, 251907, 419845, 755721, 1259535, 1595411, 2267163, 3778605, 4786233, 7977055, 11335815, 14358699, 23931165, 43076097, 71793495, 215380485]

約数ペア:

[(1, 215380485), (3, 71793495), (5, 43076097), (9, 23931165), (15, 14358699), (19, 11335815), (27, 7977055), (45, 4786233), (57, 3778605), (95, 2267163), (135, 1595411), (171, 1259535), (285, 755721), (513, 419845), (855, 251907), (2565, 83969)]