21043464

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67447}}^1$

素因数の和:67469

約数の個数: 32

約数和(自身を含む): 56656320

約数和(自身を除く): 35612856

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67447, 134894, 202341, 269788, 404682, 539576, 809364, 876811, 1618728, 1753622, 2630433, 3507244, 5260866, 7014488, 10521732, 21043464]

約数ペア:

[(1, 21043464), (2, 10521732), (3, 7014488), (4, 5260866), (6, 3507244), (8, 2630433), (12, 1753622), (13, 1618728), (24, 876811), (26, 809364), (39, 539576), (52, 404682), (78, 269788), (104, 202341), (156, 134894), (312, 67447)]