21054527

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:207

約数の個数: 24

約数和(自身を含む): 24595200

約数和(自身を除く): 3540673

約数列:

[1, 13, 19, 79, 83, 169, 247, 1027, 1079, 1501, 1577, 3211, 6557, 13351, 14027, 19513, 20501, 85241, 124583, 253669, 266513, 1108133, 1619579, 21054527]

約数ペア:

[(1, 21054527), (13, 1619579), (19, 1108133), (79, 266513), (83, 253669), (169, 124583), (247, 85241), (1027, 20501), (1079, 19513), (1501, 14027), (1577, 13351), (3211, 6557)]