20498169

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{1327}}^1$

素因数の和:1620

約数の個数: 16

約数和(自身を含む): 28897280

約数和(自身を除く): 8399111

約数列:

[1, 3, 19, 57, 271, 813, 1327, 3981, 5149, 15447, 25213, 75639, 359617, 1078851, 6832723, 20498169]

約数ペア:

[(1, 20498169), (3, 6832723), (19, 1078851), (57, 359617), (271, 75639), (813, 25213), (1327, 15447), (3981, 5149)]