20202777

素因数分解:

$3^6\times 7^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:169

約数の個数: 56

約数和(自身を含む): 35885376

約数和(自身を除く): 15682599

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 81, 107, 111, 189, 243, 259, 321, 333, 567, 729, 749, 777, 963, 999, 1701, 2247, 2331, 2889, 2997, 3959, 5103, 6741, 6993, 8667, 8991, 11877, 20223, 20979, 26001, 26973, 27713, 35631, 60669, 62937, 78003, 83139, 106893, 182007, 188811, 249417, 320679, 546021, 748251, 962037, 2244753, 2886111, 6734259, 20202777]

約数ペア:

[(1, 20202777), (3, 6734259), (7, 2886111), (9, 2244753), (21, 962037), (27, 748251), (37, 546021), (63, 320679), (81, 249417), (107, 188811), (111, 182007), (189, 106893), (243, 83139), (259, 78003), (321, 62937), (333, 60669), (567, 35631), (729, 27713), (749, 26973), (777, 26001), (963, 20979), (999, 20223), (1701, 11877), (2247, 8991), (2331, 8667), (2889, 6993), (2997, 6741), (3959, 5103)]