21324849

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{11159}}^1$

素因数の和:11189

約数の個数: 24

約数和(自身を含む): 35622720

約数和(自身を除く): 14297871

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 11159, 33477, 78113, 145067, 234339, 435201, 546791, 1015469, 1640373, 3046407, 7108283, 21324849]

約数ペア:

[(1, 21324849), (3, 7108283), (7, 3046407), (13, 1640373), (21, 1015469), (39, 546791), (49, 435201), (91, 234339), (147, 145067), (273, 78113), (637, 33477), (1911, 11159)]