17938228

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{419}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 39513600

約数和(自身を除く): 21575372

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 139, 154, 278, 308, 419, 556, 838, 973, 1529, 1676, 1946, 2933, 3058, 3892, 4609, 5866, 6116, 9218, 10703, 11732, 18436, 21406, 32263, 42812, 58241, 64526, 116482, 129052, 232964, 407687, 640651, 815374, 1281302, 1630748, 2562604, 4484557, 8969114, 17938228]

約数ペア:

[(1, 17938228), (2, 8969114), (4, 4484557), (7, 2562604), (11, 1630748), (14, 1281302), (22, 815374), (28, 640651), (44, 407687), (77, 232964), (139, 129052), (154, 116482), (278, 64526), (308, 58241), (419, 42812), (556, 32263), (838, 21406), (973, 18436), (1529, 11732), (1676, 10703), (1946, 9218), (2933, 6116), (3058, 5866), (3892, 4609)]