20939534

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:341

約数の個数: 48

約数和(自身を含む): 40449024

約数和(自身を除く): 19509490

約数列:

[1, 2, 7, 11, 14, 22, 47, 77, 94, 121, 154, 242, 263, 329, 517, 526, 658, 847, 1034, 1694, 1841, 2893, 3619, 3682, 5687, 5786, 7238, 11374, 12361, 20251, 24722, 31823, 39809, 40502, 63646, 79618, 86527, 135971, 173054, 222761, 271942, 445522, 951797, 1495681, 1903594, 2991362, 10469767, 20939534]

約数ペア:

[(1, 20939534), (2, 10469767), (7, 2991362), (11, 1903594), (14, 1495681), (22, 951797), (47, 445522), (77, 271942), (94, 222761), (121, 173054), (154, 135971), (242, 86527), (263, 79618), (329, 63646), (517, 40502), (526, 39809), (658, 31823), (847, 24722), (1034, 20251), (1694, 12361), (1841, 11374), (2893, 7238), (3619, 5786), (3682, 5687)]