21406977

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{41729}}^1$

素因数の和:41757

約数の個数: 16

約数和(自身を含む): 33384000

約数和(自身を除く): 11977023

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 41729, 125187, 375561, 792851, 1126683, 2378553, 7135659, 21406977]

約数ペア:

[(1, 21406977), (3, 7135659), (9, 2378553), (19, 1126683), (27, 792851), (57, 375561), (171, 125187), (513, 41729)]