2657529

素因数分解:

$3^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:171

約数の個数: 40

約数和(自身を含む): 4685120

約数和(自身を除く): 2027591

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 81, 109, 129, 189, 301, 327, 387, 567, 763, 903, 981, 1161, 2289, 2709, 2943, 3483, 4687, 6867, 8127, 8829, 14061, 20601, 24381, 32809, 42183, 61803, 98427, 126549, 295281, 379647, 885843, 2657529]

約数ペア:

[(1, 2657529), (3, 885843), (7, 379647), (9, 295281), (21, 126549), (27, 98427), (43, 61803), (63, 42183), (81, 32809), (109, 24381), (129, 20601), (189, 14061), (301, 8829), (327, 8127), (387, 6867), (567, 4687), (763, 3483), (903, 2943), (981, 2709), (1161, 2289)]