20619879

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{9533}}^1$

素因数の和:9646

約数の個数: 16

約数和(自身を含む): 31729152

約数和(自身を除く): 11109273

約数列:

[1, 3, 7, 21, 103, 309, 721, 2163, 9533, 28599, 66731, 200193, 981899, 2945697, 6873293, 20619879]

約数ペア:

[(1, 20619879), (3, 6873293), (7, 2945697), (21, 981899), (103, 200193), (309, 66731), (721, 28599), (2163, 9533)]