20281294

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{1949}}^1$

素因数の和:2016

約数の個数: 24

約数和(自身を含む): 34234200

約数和(自身を除く): 13952906

約数列:

[1, 2, 11, 22, 43, 86, 121, 242, 473, 946, 1949, 3898, 5203, 10406, 21439, 42878, 83807, 167614, 235829, 471658, 921877, 1843754, 10140647, 20281294]

約数ペア:

[(1, 20281294), (2, 10140647), (11, 1843754), (22, 921877), (43, 471658), (86, 235829), (121, 167614), (242, 83807), (473, 42878), (946, 21439), (1949, 10406), (3898, 5203)]