66978009

素因数分解:

$3^4\times 7^1\times {\mathrm{118127}}^1$

素因数の和:118146

約数の個数: 20

約数和(自身を含む): 114347904

約数和(自身を除く): 47369895

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 118127, 354381, 826889, 1063143, 2480667, 3189429, 7442001, 9568287, 22326003, 66978009]

約数ペア:

[(1, 66978009), (3, 22326003), (7, 9568287), (9, 7442001), (21, 3189429), (27, 2480667), (63, 1063143), (81, 826889), (189, 354381), (567, 118127)]