20778868647

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{568241}}^1$

素因数の和:568503

約数の個数: 24

約数和(自身を含む): 31912470720

約数和(自身を除く): 11133602073

約数列:

[1, 3, 9, 17, 51, 153, 239, 717, 2151, 4063, 12189, 36567, 568241, 1704723, 5114169, 9660097, 28980291, 86940873, 135809599, 407428797, 1222286391, 2308763183, 6926289549, 20778868647]

約数ペア:

[(1, 20778868647), (3, 6926289549), (9, 2308763183), (17, 1222286391), (51, 407428797), (153, 135809599), (239, 86940873), (717, 28980291), (2151, 9660097), (4063, 5114169), (12189, 1704723), (36567, 568241)]