21155493

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{1759}}^1$

素因数の和:1992

約数の個数: 16

約数和(自身を含む): 29849600

約数和(自身を除く): 8694107

約数列:

[1, 3, 19, 57, 211, 633, 1759, 4009, 5277, 12027, 33421, 100263, 371149, 1113447, 7051831, 21155493]

約数ペア:

[(1, 21155493), (3, 7051831), (19, 1113447), (57, 371149), (211, 100263), (633, 33421), (1759, 12027), (4009, 5277)]