21769371

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{569}}^1$

素因数の和:700

約数の個数: 32

約数和(自身を含む): 35112000

約数和(自身を除く): 13342629

約数列:

[1, 3, 9, 13, 27, 39, 109, 117, 327, 351, 569, 981, 1417, 1707, 2943, 4251, 5121, 7397, 12753, 15363, 22191, 38259, 62021, 66573, 186063, 199719, 558189, 806273, 1674567, 2418819, 7256457, 21769371]

約数ペア:

[(1, 21769371), (3, 7256457), (9, 2418819), (13, 1674567), (27, 806273), (39, 558189), (109, 199719), (117, 186063), (327, 66573), (351, 62021), (569, 38259), (981, 22191), (1417, 15363), (1707, 12753), (2943, 7397), (4251, 5121)]