21785244

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1913}}^1$

素因数の和:2006

約数の個数: 48

約数和(自身を含む): 55521312

約数和(自身を除く): 33736068

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 73, 78, 146, 156, 219, 292, 438, 876, 949, 1898, 1913, 2847, 3796, 3826, 5694, 5739, 7652, 11388, 11478, 22956, 24869, 49738, 74607, 99476, 139649, 149214, 279298, 298428, 418947, 558596, 837894, 1675788, 1815437, 3630874, 5446311, 7261748, 10892622, 21785244]

約数ペア:

[(1, 21785244), (2, 10892622), (3, 7261748), (4, 5446311), (6, 3630874), (12, 1815437), (13, 1675788), (26, 837894), (39, 558596), (52, 418947), (73, 298428), (78, 279298), (146, 149214), (156, 139649), (219, 99476), (292, 74607), (438, 49738), (876, 24869), (949, 22956), (1898, 11478), (1913, 11388), (2847, 7652), (3796, 5739), (3826, 5694)]