1621377

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{541}}^1$

素因数の和:590

約数の個数: 20

約数和(自身を含む): 2492116

約数和(自身を除く): 870739

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 541, 999, 1623, 2997, 4869, 14607, 20017, 43821, 60051, 180153, 540459, 1621377]

約数ペア:

[(1, 1621377), (3, 540459), (9, 180153), (27, 60051), (37, 43821), (81, 20017), (111, 14607), (333, 4869), (541, 2997), (999, 1623)]