21662319

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{19463}}^1$

素因数の和:19526

約数の個数: 16

約数和(自身を含む): 33633792

約数和(自身を除く): 11971473

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 19463, 58389, 136241, 408723, 1031539, 3094617, 7220773, 21662319]

約数ペア:

[(1, 21662319), (3, 7220773), (7, 3094617), (21, 1031539), (53, 408723), (159, 136241), (371, 58389), (1113, 19463)]