18702728

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{139}}^2$

素因数の和:306

約数の個数: 36

約数和(自身を含む): 38824695

約数和(自身を除く): 20121967

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 139, 242, 278, 484, 556, 968, 1112, 1529, 3058, 6116, 12232, 16819, 19321, 33638, 38642, 67276, 77284, 134552, 154568, 212531, 425062, 850124, 1700248, 2337841, 4675682, 9351364, 18702728]

約数ペア:

[(1, 18702728), (2, 9351364), (4, 4675682), (8, 2337841), (11, 1700248), (22, 850124), (44, 425062), (88, 212531), (121, 154568), (139, 134552), (242, 77284), (278, 67276), (484, 38642), (556, 33638), (968, 19321), (1112, 16819), (1529, 12232), (3058, 6116)]