20776869

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1451}}^1$

素因数の和:1537

約数の個数: 24

約数和(自身を含む): 31560672

約数和(自身を除く): 10783803

約数列:

[1, 3, 9, 37, 43, 111, 129, 333, 387, 1451, 1591, 4353, 4773, 13059, 14319, 53687, 62393, 161061, 187179, 483183, 561537, 2308541, 6925623, 20776869]

約数ペア:

[(1, 20776869), (3, 6925623), (9, 2308541), (37, 561537), (43, 483183), (111, 187179), (129, 161061), (333, 62393), (387, 53687), (1451, 14319), (1591, 13059), (4353, 4773)]