15661289721

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67797791}}^1$

素因数の和:67797812

約数の個数: 16

約数和(自身を含む): 26034352128

約数和(自身を除く): 10373062407

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 67797791, 203393373, 474584537, 745775701, 1423753611, 2237327103, 5220429907, 15661289721]

約数ペア:

[(1, 15661289721), (3, 5220429907), (7, 2237327103), (11, 1423753611), (21, 745775701), (33, 474584537), (77, 203393373), (231, 67797791)]