21022356

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 50738688

約数和(自身を除く): 29716332

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 131, 172, 258, 262, 311, 393, 516, 524, 622, 786, 933, 1244, 1572, 1866, 3732, 5633, 11266, 13373, 16899, 22532, 26746, 33798, 40119, 40741, 53492, 67596, 80238, 81482, 122223, 160476, 162964, 244446, 488892, 1751863, 3503726, 5255589, 7007452, 10511178, 21022356]

約数ペア:

[(1, 21022356), (2, 10511178), (3, 7007452), (4, 5255589), (6, 3503726), (12, 1751863), (43, 488892), (86, 244446), (129, 162964), (131, 160476), (172, 122223), (258, 81482), (262, 80238), (311, 67596), (393, 53492), (516, 40741), (524, 40119), (622, 33798), (786, 26746), (933, 22532), (1244, 16899), (1572, 13373), (1866, 11266), (3732, 5633)]