20286693

素因数分解:

$3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{967}}^1$

素因数の和:1023

約数の個数: 40

約数和(自身を含む): 35606912

約数和(自身を除く): 15320219

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 81, 111, 189, 259, 333, 567, 777, 967, 999, 2331, 2901, 2997, 6769, 6993, 8703, 20307, 20979, 26109, 35779, 60921, 78327, 107337, 182763, 250453, 322011, 548289, 751359, 966033, 2254077, 2898099, 6762231, 20286693]

約数ペア:

[(1, 20286693), (3, 6762231), (7, 2898099), (9, 2254077), (21, 966033), (27, 751359), (37, 548289), (63, 322011), (81, 250453), (111, 182763), (189, 107337), (259, 78327), (333, 60921), (567, 35779), (777, 26109), (967, 20979), (999, 20307), (2331, 8703), (2901, 6993), (2997, 6769)]