21099291

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{1879}}^1$

素因数の和:2098

約数の個数: 16

約数和(自身を含む): 29779200

約数和(自身を除く): 8679909

約数列:

[1, 3, 19, 57, 197, 591, 1879, 3743, 5637, 11229, 35701, 107103, 370163, 1110489, 7033097, 21099291]

約数ペア:

[(1, 21099291), (3, 7033097), (19, 1110489), (57, 370163), (197, 107103), (591, 35701), (1879, 11229), (3743, 5637)]