20638006

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1\times {\mathrm{647}}^1$

素因数の和:1079

約数の個数: 16

約数和(自身を含む): 31842720

約数和(自身を除く): 11204714

約数列:

[1, 2, 41, 82, 389, 647, 778, 1294, 15949, 26527, 31898, 53054, 251683, 503366, 10319003, 20638006]

約数ペア:

[(1, 20638006), (2, 10319003), (41, 503366), (82, 251683), (389, 53054), (647, 31898), (778, 26527), (1294, 15949)]