20845809

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{337}}^1$

素因数の和:454

約数の個数: 32

約数和(自身を含む): 32448000

約数和(自身を除く): 11602191

約数列:

[1, 3, 9, 27, 29, 79, 87, 237, 261, 337, 711, 783, 1011, 2133, 2291, 3033, 6873, 9099, 9773, 20619, 26623, 29319, 61857, 79869, 87957, 239607, 263871, 718821, 772067, 2316201, 6948603, 20845809]

約数ペア:

[(1, 20845809), (3, 6948603), (9, 2316201), (27, 772067), (29, 718821), (79, 263871), (87, 239607), (237, 87957), (261, 79869), (337, 61857), (711, 29319), (783, 26623), (1011, 20619), (2133, 9773), (2291, 9099), (3033, 6873)]