21185637

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{12113}}^1$

素因数の和:12180

約数の個数: 16

約数和(自身を含む): 31399488

約数和(自身を除く): 10213851

約数列:

[1, 3, 11, 33, 53, 159, 583, 1749, 12113, 36339, 133243, 399729, 641989, 1925967, 7061879, 21185637]

約数ペア:

[(1, 21185637), (3, 7061879), (11, 1925967), (33, 641989), (53, 399729), (159, 133243), (583, 36339), (1749, 12113)]