20215563

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{4273}}^1$

素因数の和:4378

約数の個数: 16

約数和(自身を含む): 28721280

約数和(自身を除く): 8505717

約数列:

[1, 3, 19, 57, 83, 249, 1577, 4273, 4731, 12819, 81187, 243561, 354659, 1063977, 6738521, 20215563]

約数ペア:

[(1, 20215563), (3, 6738521), (19, 1063977), (57, 354659), (83, 243561), (249, 81187), (1577, 12819), (4273, 4731)]