21130189659

素因数分解:

$3^6\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{7187}}^1$

素因数の和:7351

約数の個数: 56

約数和(自身を含む): 32840103120

約数和(自身を除く): 11709913461

約数列:

[1, 3, 9, 27, 37, 81, 109, 111, 243, 327, 333, 729, 981, 999, 2943, 2997, 4033, 7187, 8829, 8991, 12099, 21561, 26487, 26973, 36297, 64683, 79461, 108891, 194049, 265919, 326673, 582147, 783383, 797757, 980019, 1746441, 2350149, 2393271, 2940057, 5239323, 7050447, 7179813, 21151341, 21539439, 28985171, 63454023, 64618317, 86955513, 190362069, 193854951, 260866539, 571086207, 782599617, 2347798851, 7043396553, 21130189659]

約数ペア:

[(1, 21130189659), (3, 7043396553), (9, 2347798851), (27, 782599617), (37, 571086207), (81, 260866539), (109, 193854951), (111, 190362069), (243, 86955513), (327, 64618317), (333, 63454023), (729, 28985171), (981, 21539439), (999, 21151341), (2943, 7179813), (2997, 7050447), (4033, 5239323), (7187, 2940057), (8829, 2393271), (8991, 2350149), (12099, 1746441), (21561, 980019), (26487, 797757), (26973, 783383), (36297, 582147), (64683, 326673), (79461, 265919), (108891, 194049)]