20512019899

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{56167}}^1$

素因数の和:56467

約数の個数: 24

約数和(自身を含む): 24780198240

約数和(自身を除く): 4268178341

約数列:

[1, 7, 29, 49, 203, 257, 1421, 1799, 7453, 12593, 52171, 56167, 365197, 393169, 1628843, 2752183, 11401901, 14434919, 79813307, 101044433, 418612651, 707311031, 2930288557, 20512019899]

約数ペア:

[(1, 20512019899), (7, 2930288557), (29, 707311031), (49, 418612651), (203, 101044433), (257, 79813307), (1421, 14434919), (1799, 11401901), (7453, 2752183), (12593, 1628843), (52171, 393169), (56167, 365197)]