21653907

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{5009}}^1$

素因数の和:5154

約数の個数: 16

約数和(自身を含む): 31743360

約数和(自身を除く): 10089453

約数列:

[1, 3, 11, 33, 131, 393, 1441, 4323, 5009, 15027, 55099, 165297, 656179, 1968537, 7217969, 21653907]

約数ペア:

[(1, 21653907), (3, 7217969), (11, 1968537), (33, 656179), (131, 165297), (393, 55099), (1441, 15027), (4323, 5009)]