18829228

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 38384640

約数和(自身を除く): 19555412

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 101, 202, 209, 223, 404, 418, 446, 836, 892, 1111, 1919, 2222, 2453, 3838, 4237, 4444, 4906, 7676, 8474, 9812, 16948, 21109, 22523, 42218, 45046, 46607, 84436, 90092, 93214, 186428, 247753, 427937, 495506, 855874, 991012, 1711748, 4707307, 9414614, 18829228]

約数ペア:

[(1, 18829228), (2, 9414614), (4, 4707307), (11, 1711748), (19, 991012), (22, 855874), (38, 495506), (44, 427937), (76, 247753), (101, 186428), (202, 93214), (209, 90092), (223, 84436), (404, 46607), (418, 45046), (446, 42218), (836, 22523), (892, 21109), (1111, 16948), (1919, 9812), (2222, 8474), (2453, 7676), (3838, 4906), (4237, 4444)]