20118321

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{39217}}^1$

素因数の和:39245

約数の個数: 16

約数和(自身を含む): 31374400

約数和(自身を除く): 11256079

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 39217, 117651, 352953, 745123, 1058859, 2235369, 6706107, 20118321]

約数ペア:

[(1, 20118321), (3, 6706107), (9, 2235369), (19, 1058859), (27, 745123), (57, 352953), (171, 117651), (513, 39217)]