21304459

素因数分解:

${\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:426

約数の個数: 16

約数和(自身を含む): 23872896

約数和(自身を除く): 2568437

約数列:

[1, 11, 67, 137, 211, 737, 1507, 2321, 9179, 14137, 28907, 100969, 155507, 317977, 1936769, 21304459]

約数ペア:

[(1, 21304459), (11, 1936769), (67, 317977), (137, 155507), (211, 100969), (737, 28907), (1507, 14137), (2321, 9179)]