18821968

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{467}}^1$

素因数の和:715

約数の個数: 40

約数和(自身を含む): 40042080

約数和(自身を除く): 21220112

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 229, 458, 467, 916, 934, 1832, 1868, 2519, 3664, 3736, 5038, 5137, 7472, 10076, 10274, 20152, 20548, 40304, 41096, 82192, 106943, 213886, 427772, 855544, 1176373, 1711088, 2352746, 4705492, 9410984, 18821968]

約数ペア:

[(1, 18821968), (2, 9410984), (4, 4705492), (8, 2352746), (11, 1711088), (16, 1176373), (22, 855544), (44, 427772), (88, 213886), (176, 106943), (229, 82192), (458, 41096), (467, 40304), (916, 20548), (934, 20152), (1832, 10274), (1868, 10076), (2519, 7472), (3664, 5137), (3736, 5038)]