81733617

素因数分解:

$3^4\times 7^2\times {\mathrm{20593}}^1$

素因数の和:20619

約数の個数: 30

約数和(自身を含む): 142036818

約数和(自身を除く): 60303201

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 20593, 61779, 144151, 185337, 432453, 556011, 1009057, 1297359, 1668033, 3027171, 3892077, 9081513, 11676231, 27244539, 81733617]

約数ペア:

[(1, 81733617), (3, 27244539), (7, 11676231), (9, 9081513), (21, 3892077), (27, 3027171), (49, 1668033), (63, 1297359), (81, 1009057), (147, 556011), (189, 432453), (441, 185337), (567, 144151), (1323, 61779), (3969, 20593)]