21238048

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2687}}^1$

素因数の和:2729

約数の個数: 48

約数和(自身を含む): 47416320

約数和(自身を除く): 26178272

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 76, 104, 152, 208, 247, 304, 416, 494, 608, 988, 1976, 2687, 3952, 5374, 7904, 10748, 21496, 34931, 42992, 51053, 69862, 85984, 102106, 139724, 204212, 279448, 408424, 558896, 663689, 816848, 1117792, 1327378, 1633696, 2654756, 5309512, 10619024, 21238048]

約数ペア:

[(1, 21238048), (2, 10619024), (4, 5309512), (8, 2654756), (13, 1633696), (16, 1327378), (19, 1117792), (26, 816848), (32, 663689), (38, 558896), (52, 408424), (76, 279448), (104, 204212), (152, 139724), (208, 102106), (247, 85984), (304, 69862), (416, 51053), (494, 42992), (608, 34931), (988, 21496), (1976, 10748), (2687, 7904), (3952, 5374)]