2991081

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{647}}^1$

素因数の和:740

約数の個数: 16

約数和(自身を含む): 4230144

約数和(自身を除く): 1239063

約数列:

[1, 3, 23, 67, 69, 201, 647, 1541, 1941, 4623, 14881, 43349, 44643, 130047, 997027, 2991081]

約数ペア:

[(1, 2991081), (3, 997027), (23, 130047), (67, 44643), (69, 43349), (201, 14881), (647, 4623), (1541, 1941)]