81215883

素因数分解:

$3^2\times 7^3\times {\mathrm{26309}}^1$

素因数の和:26336

約数の個数: 24

約数和(自身を含む): 136812000

約数和(自身を除く): 55596117

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 26309, 78927, 184163, 236781, 552489, 1289141, 1657467, 3867423, 9023987, 11602269, 27071961, 81215883]

約数ペア:

[(1, 81215883), (3, 27071961), (7, 11602269), (9, 9023987), (21, 3867423), (49, 1657467), (63, 1289141), (147, 552489), (343, 236781), (441, 184163), (1029, 78927), (3087, 26309)]