7942131

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{1381}}^1$

素因数の和:1464

約数の個数: 20

約数和(自身を含む): 12039984

約数和(自身を除く): 4097853

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1381, 1917, 4143, 5751, 12429, 37287, 98051, 111861, 294153, 882459, 2647377, 7942131]

約数ペア:

[(1, 7942131), (3, 2647377), (9, 882459), (27, 294153), (71, 111861), (81, 98051), (213, 37287), (639, 12429), (1381, 5751), (1917, 4143)]