1289969989

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{24967}}^1$

素因数の和:25057

約数の個数: 24

約数和(自身を含む): 1647089024

約数和(自身を除く): 357119035

約数列:

[1, 7, 11, 61, 77, 121, 427, 671, 847, 4697, 7381, 24967, 51667, 174769, 274637, 1522987, 1922459, 3021007, 10660909, 16752857, 21147049, 117269999, 184281427, 1289969989]

約数ペア:

[(1, 1289969989), (7, 184281427), (11, 117269999), (61, 21147049), (77, 16752857), (121, 10660909), (427, 3021007), (671, 1922459), (847, 1522987), (4697, 274637), (7381, 174769), (24967, 51667)]