20966943

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1721}}^1$

素因数の和:1886

約数の個数: 16

約数和(自身を含む): 29094912

約数和(自身を除く): 8127969

約数列:

[1, 3, 31, 93, 131, 393, 1721, 4061, 5163, 12183, 53351, 160053, 225451, 676353, 6988981, 20966943]

約数ペア:

[(1, 20966943), (3, 6988981), (31, 676353), (93, 225451), (131, 160053), (393, 53351), (1721, 12183), (4061, 5163)]