21340503

素因数分解:

$3^5\times {\mathrm{53}}^1\times {\mathrm{1657}}^1$

素因数の和:1725

約数の個数: 24

約数和(自身を含む): 32589648

約数和(自身を除く): 11249145

約数列:

[1, 3, 9, 27, 53, 81, 159, 243, 477, 1431, 1657, 4293, 4971, 12879, 14913, 44739, 87821, 134217, 263463, 402651, 790389, 2371167, 7113501, 21340503]

約数ペア:

[(1, 21340503), (3, 7113501), (9, 2371167), (27, 790389), (53, 402651), (81, 263463), (159, 134217), (243, 87821), (477, 44739), (1431, 14913), (1657, 12879), (4293, 4971)]