20488804

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15569}}^1$

素因数の和:15627

約数の個数: 24

約数和(自身を含む): 41852160

約数和(自身を除く): 21363356

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 15569, 31138, 62276, 108983, 217966, 435932, 731743, 1463486, 2926972, 5122201, 10244402, 20488804]

約数ペア:

[(1, 20488804), (2, 10244402), (4, 5122201), (7, 2926972), (14, 1463486), (28, 731743), (47, 435932), (94, 217966), (188, 108983), (329, 62276), (658, 31138), (1316, 15569)]