21379017

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{1867}}^1$

素因数の和:2228

約数の個数: 16

約数和(自身を含む): 31203072

約数和(自身を除く): 9824055

約数列:

[1, 3, 11, 33, 347, 1041, 1867, 3817, 5601, 11451, 20537, 61611, 647849, 1943547, 7126339, 21379017]

約数ペア:

[(1, 21379017), (3, 7126339), (11, 1943547), (33, 647849), (347, 61611), (1041, 20537), (1867, 11451), (3817, 5601)]