20624648

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3301}}^1$

素因数の和:3389

約数の個数: 32

約数和(自身を含む): 42793920

約数和(自身を除く): 22169272

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 142, 284, 568, 781, 1562, 3124, 3301, 6248, 6602, 13204, 26408, 36311, 72622, 145244, 234371, 290488, 468742, 937484, 1874968, 2578081, 5156162, 10312324, 20624648]

約数ペア:

[(1, 20624648), (2, 10312324), (4, 5156162), (8, 2578081), (11, 1874968), (22, 937484), (44, 468742), (71, 290488), (88, 234371), (142, 145244), (284, 72622), (568, 36311), (781, 26408), (1562, 13204), (3124, 6602), (3301, 6248)]