81247779

素因数分解:

$3^6\times {\mathrm{59}}^1\times {\mathrm{1889}}^1$

素因数の和:1966

約数の個数: 28

約数和(自身を含む): 123946200

約数和(自身を除く): 42698421

約数列:

[1, 3, 9, 27, 59, 81, 177, 243, 531, 729, 1593, 1889, 4779, 5667, 14337, 17001, 43011, 51003, 111451, 153009, 334353, 459027, 1003059, 1377081, 3009177, 9027531, 27082593, 81247779]

約数ペア:

[(1, 81247779), (3, 27082593), (9, 9027531), (27, 3009177), (59, 1377081), (81, 1003059), (177, 459027), (243, 334353), (531, 153009), (729, 111451), (1593, 51003), (1889, 43011), (4779, 17001), (5667, 14337)]