21639167

素因数分解:

${\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{269}}^1$

素因数の和:454

約数の個数: 16

約数和(自身を含む): 24261120

約数和(自身を除く): 2621953

約数列:

[1, 11, 71, 103, 269, 781, 1133, 2959, 7313, 19099, 27707, 80443, 210089, 304777, 1967197, 21639167]

約数ペア:

[(1, 21639167), (11, 1967197), (71, 304777), (103, 210089), (269, 80443), (781, 27707), (1133, 19099), (2959, 7313)]