20195982

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:417

約数の個数: 48

約数和(自身を含む): 45405360

約数和(自身を除く): 25209378

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 97, 129, 194, 258, 269, 291, 387, 538, 582, 774, 807, 873, 1614, 1746, 2421, 4171, 4842, 8342, 11567, 12513, 23134, 25026, 26093, 34701, 37539, 52186, 69402, 75078, 78279, 104103, 156558, 208206, 234837, 469674, 1121999, 2243998, 3365997, 6731994, 10097991, 20195982]

約数ペア:

[(1, 20195982), (2, 10097991), (3, 6731994), (6, 3365997), (9, 2243998), (18, 1121999), (43, 469674), (86, 234837), (97, 208206), (129, 156558), (194, 104103), (258, 78279), (269, 75078), (291, 69402), (387, 52186), (538, 37539), (582, 34701), (774, 26093), (807, 25026), (873, 23134), (1614, 12513), (1746, 11567), (2421, 8342), (4171, 4842)]