218905173

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{37021}}^1$

素因数の和:37106

約数の個数: 20

約数和(自身を含む): 331494988

約数和(自身を除く): 112589815

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 5913, 37021, 111063, 333189, 999567, 2702533, 2998701, 8107599, 24322797, 72968391, 218905173]

約数ペア:

[(1, 218905173), (3, 72968391), (9, 24322797), (27, 8107599), (73, 2998701), (81, 2702533), (219, 999567), (657, 333189), (1971, 111063), (5913, 37021)]