21342586

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{2851}}^1$

素因数の和:3069

約数の個数: 16

約数和(自身を含む): 33881760

約数和(自身を除く): 12539174

約数列:

[1, 2, 19, 38, 197, 394, 2851, 3743, 5702, 7486, 54169, 108338, 561647, 1123294, 10671293, 21342586]

約数ペア:

[(1, 21342586), (2, 10671293), (19, 1123294), (38, 561647), (197, 108338), (394, 54169), (2851, 7486), (3743, 5702)]