27890811

素因数分解:

$3^9\times {\mathrm{13}}^1\times {\mathrm{109}}^1$

素因数の和:149

約数の個数: 40

約数和(自身を含む): 45466960

約数和(自身を除く): 17576149

約数列:

[1, 3, 9, 13, 27, 39, 81, 109, 117, 243, 327, 351, 729, 981, 1053, 1417, 2187, 2943, 3159, 4251, 6561, 8829, 9477, 12753, 19683, 26487, 28431, 38259, 79461, 85293, 114777, 238383, 255879, 344331, 715149, 1032993, 2145447, 3098979, 9296937, 27890811]

約数ペア:

[(1, 27890811), (3, 9296937), (9, 3098979), (13, 2145447), (27, 1032993), (39, 715149), (81, 344331), (109, 255879), (117, 238383), (243, 114777), (327, 85293), (351, 79461), (729, 38259), (981, 28431), (1053, 26487), (1417, 19683), (2187, 12753), (2943, 9477), (3159, 8829), (4251, 6561)]