217445559

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1\times {\mathrm{3517}}^1$

素因数の和:4114

約数の個数: 16

約数和(自身を含む): 298382688

約数和(自身を除く): 80937129

約数列:

[1, 3, 37, 111, 557, 1671, 3517, 10551, 20609, 61827, 130129, 390387, 1958969, 5876907, 72481853, 217445559]

約数ペア:

[(1, 217445559), (3, 72481853), (37, 5876907), (111, 1958969), (557, 390387), (1671, 130129), (3517, 61827), (10551, 20609)]