20249703

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:464

約数の個数: 32

約数和(自身を含む): 32080320

約数和(自身を除く): 11830617

約数列:

[1, 3, 9, 17, 27, 51, 153, 157, 281, 459, 471, 843, 1413, 2529, 2669, 4239, 4777, 7587, 8007, 14331, 24021, 42993, 44117, 72063, 128979, 132351, 397053, 749989, 1191159, 2249967, 6749901, 20249703]

約数ペア:

[(1, 20249703), (3, 6749901), (9, 2249967), (17, 1191159), (27, 749989), (51, 397053), (153, 132351), (157, 128979), (281, 72063), (459, 44117), (471, 42993), (843, 24021), (1413, 14331), (2529, 8007), (2669, 7587), (4239, 4777)]