21207258

素因数分解:

$2^1\times 3^4\times {\mathrm{109}}^1\times {\mathrm{1201}}^1$

素因数の和:1324

約数の個数: 40

約数和(自身を含む): 47995860

約数和(自身を除く): 26788602

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 109, 162, 218, 327, 654, 981, 1201, 1962, 2402, 2943, 3603, 5886, 7206, 8829, 10809, 17658, 21618, 32427, 64854, 97281, 130909, 194562, 261818, 392727, 785454, 1178181, 2356362, 3534543, 7069086, 10603629, 21207258]

約数ペア:

[(1, 21207258), (2, 10603629), (3, 7069086), (6, 3534543), (9, 2356362), (18, 1178181), (27, 785454), (54, 392727), (81, 261818), (109, 194562), (162, 130909), (218, 97281), (327, 64854), (654, 32427), (981, 21618), (1201, 17658), (1962, 10809), (2402, 8829), (2943, 7206), (3603, 5886)]