205311321

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{400217}}^1$

素因数の和:400245

約数の個数: 16

約数和(自身を含む): 320174400

約数和(自身を除く): 114863079

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 400217, 1200651, 3601953, 7604123, 10805859, 22812369, 68437107, 205311321]

約数ペア:

[(1, 205311321), (3, 68437107), (9, 22812369), (19, 10805859), (27, 7604123), (57, 3601953), (171, 1200651), (513, 400217)]