20447686

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{76871}}^1$

素因数の和:76899

約数の個数: 16

約数和(自身を含む): 36898560

約数和(自身を除く): 16450874

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 76871, 153742, 538097, 1076194, 1460549, 2921098, 10223843, 20447686]

約数ペア:

[(1, 20447686), (2, 10223843), (7, 2921098), (14, 1460549), (19, 1076194), (38, 538097), (133, 153742), (266, 76871)]