18712755

素因数分解:

$3^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1429}}^1$

素因数の和:1540

約数の個数: 32

約数和(自身を含む): 33633600

約数和(自身を除く): 14920845

約数列:

[1, 3, 5, 9, 15, 27, 45, 97, 135, 291, 485, 873, 1429, 1455, 2619, 4287, 4365, 7145, 12861, 13095, 21435, 38583, 64305, 138613, 192915, 415839, 693065, 1247517, 2079195, 3742551, 6237585, 18712755]

約数ペア:

[(1, 18712755), (3, 6237585), (5, 3742551), (9, 2079195), (15, 1247517), (27, 693065), (45, 415839), (97, 192915), (135, 138613), (291, 64305), (485, 38583), (873, 21435), (1429, 13095), (1455, 12861), (2619, 7145), (4287, 4365)]