20804973141

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{1069}}^1\times {\mathrm{1663}}^1$

素因数の和:2865

約数の個数: 32

約数和(自身を含む): 28715581440

約数和(自身を除く): 7910608299

約数列:

[1, 3, 47, 83, 141, 249, 1069, 1663, 3207, 3901, 4989, 11703, 50243, 78161, 88727, 138029, 150729, 234483, 266181, 414087, 1777747, 4170169, 5333241, 6487363, 12510507, 19462089, 83554109, 147553001, 250662327, 442659003, 6934991047, 20804973141]

約数ペア:

[(1, 20804973141), (3, 6934991047), (47, 442659003), (83, 250662327), (141, 147553001), (249, 83554109), (1069, 19462089), (1663, 12510507), (3207, 6487363), (3901, 5333241), (4989, 4170169), (11703, 1777747), (50243, 414087), (78161, 266181), (88727, 234483), (138029, 150729)]