21243765

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{30133}}^1$

素因数の和:30188

約数の個数: 16

約数和(自身を含む): 34714368

約数和(自身を除く): 13470603

約数列:

[1, 3, 5, 15, 47, 141, 235, 705, 30133, 90399, 150665, 451995, 1416251, 4248753, 7081255, 21243765]

約数ペア:

[(1, 21243765), (3, 7081255), (5, 4248753), (15, 1416251), (47, 451995), (141, 150665), (235, 90399), (705, 30133)]