18668265

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2309}}^1$

素因数の和:2342

約数の個数: 48

約数和(自身を含む): 37920960

約数和(自身を除く): 19252695

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 105, 147, 165, 231, 245, 385, 539, 735, 1155, 1617, 2309, 2695, 6927, 8085, 11545, 16163, 25399, 34635, 48489, 76197, 80815, 113141, 126995, 177793, 242445, 339423, 380985, 533379, 565705, 888965, 1244551, 1697115, 2666895, 3733653, 6222755, 18668265]

約数ペア:

[(1, 18668265), (3, 6222755), (5, 3733653), (7, 2666895), (11, 1697115), (15, 1244551), (21, 888965), (33, 565705), (35, 533379), (49, 380985), (55, 339423), (77, 242445), (105, 177793), (147, 126995), (165, 113141), (231, 80815), (245, 76197), (385, 48489), (539, 34635), (735, 25399), (1155, 16163), (1617, 11545), (2309, 8085), (2695, 6927)]