21061707

素因数分解:

$3^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{461}}^1$

素因数の和:718

約数の個数: 16

約数和(自身を含む): 28614432

約数和(自身を除く): 7552725

約数列:

[1, 3, 97, 157, 291, 461, 471, 1383, 15229, 44717, 45687, 72377, 134151, 217131, 7020569, 21061707]

約数ペア:

[(1, 21061707), (3, 7020569), (97, 217131), (157, 134151), (291, 72377), (461, 45687), (471, 44717), (1383, 15229)]