20193879

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{727}}^1$

素因数の和:974

約数の個数: 16

約数和(自身を含む): 27675648

約数和(自身を除く): 7481769

約数列:

[1, 3, 47, 141, 197, 591, 727, 2181, 9259, 27777, 34169, 102507, 143219, 429657, 6731293, 20193879]

約数ペア:

[(1, 20193879), (3, 6731293), (47, 429657), (141, 143219), (197, 102507), (591, 34169), (727, 27777), (2181, 9259)]