21000638937

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1\times {\mathrm{355937}}^1$

素因数の和:356288

約数の個数: 16

約数和(自身を含む): 28497820032

約数和(自身を除く): 7497181095

約数列:

[1, 3, 71, 213, 277, 831, 19667, 59001, 355937, 1067811, 25271527, 75814581, 98594549, 295783647, 7000212979, 21000638937]

約数ペア:

[(1, 21000638937), (3, 7000212979), (71, 295783647), (213, 98594549), (277, 75814581), (831, 25271527), (19667, 1067811), (59001, 355937)]