21444808

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1123}}^1$

素因数の和:1178

約数の個数: 64

約数和(自身を含む): 51793920

約数和(自身を除く): 30349112

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 31, 44, 56, 62, 77, 88, 124, 154, 217, 248, 308, 341, 434, 616, 682, 868, 1123, 1364, 1736, 2246, 2387, 2728, 4492, 4774, 7861, 8984, 9548, 12353, 15722, 19096, 24706, 31444, 34813, 49412, 62888, 69626, 86471, 98824, 139252, 172942, 243691, 278504, 345884, 382943, 487382, 691768, 765886, 974764, 1531772, 1949528, 2680601, 3063544, 5361202, 10722404, 21444808]

約数ペア:

[(1, 21444808), (2, 10722404), (4, 5361202), (7, 3063544), (8, 2680601), (11, 1949528), (14, 1531772), (22, 974764), (28, 765886), (31, 691768), (44, 487382), (56, 382943), (62, 345884), (77, 278504), (88, 243691), (124, 172942), (154, 139252), (217, 98824), (248, 86471), (308, 69626), (341, 62888), (434, 49412), (616, 34813), (682, 31444), (868, 24706), (1123, 19096), (1364, 15722), (1736, 12353), (2246, 9548), (2387, 8984), (2728, 7861), (4492, 4774)]