51621052221

素因数分解:

$3^4\times {\mathrm{647}}^1\times {\mathrm{985003}}^1$

素因数の和:985662

約数の個数: 20

約数和(自身を含む): 77232193632

約数和(自身を除く): 25611141411

約数列:

[1, 3, 9, 27, 81, 647, 1941, 5823, 17469, 52407, 985003, 2955009, 8865027, 26595081, 79785243, 637296941, 1911890823, 5735672469, 17207017407, 51621052221]

約数ペア:

[(1, 51621052221), (3, 17207017407), (9, 5735672469), (27, 1911890823), (81, 637296941), (647, 79785243), (1941, 26595081), (5823, 8865027), (17469, 2955009), (52407, 985003)]