21043544

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1601}}^1$

素因数の和:1691

約数の個数: 32

約数和(自身を含む): 41523840

約数和(自身を除く): 20480296

約数列:

[1, 2, 4, 8, 31, 53, 62, 106, 124, 212, 248, 424, 1601, 1643, 3202, 3286, 6404, 6572, 12808, 13144, 49631, 84853, 99262, 169706, 198524, 339412, 397048, 678824, 2630443, 5260886, 10521772, 21043544]

約数ペア:

[(1, 21043544), (2, 10521772), (4, 5260886), (8, 2630443), (31, 678824), (53, 397048), (62, 339412), (106, 198524), (124, 169706), (212, 99262), (248, 84853), (424, 49631), (1601, 13144), (1643, 12808), (3202, 6572), (3286, 6404)]