81497259

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{15017}}^1$

素因数の和:15096

約数の個数: 20

約数和(自身を含む): 123568104

約数和(自身を除く): 42070845

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 15017, 45051, 135153, 405459, 1006139, 1216377, 3018417, 9055251, 27165753, 81497259]

約数ペア:

[(1, 81497259), (3, 27165753), (9, 9055251), (27, 3018417), (67, 1216377), (81, 1006139), (201, 405459), (603, 135153), (1809, 45051), (5427, 15017)]