81395847

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4547}}^1$

素因数の和:4589

約数の個数: 40

約数和(自身を含む): 138677616

約数和(自身を除く): 57281769

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 81, 117, 153, 221, 351, 459, 663, 1053, 1377, 1989, 4547, 5967, 13641, 17901, 40923, 59111, 77299, 122769, 177333, 231897, 368307, 531999, 695691, 1004887, 1595997, 2087073, 3014661, 4787991, 6261219, 9043983, 27131949, 81395847]

約数ペア:

[(1, 81395847), (3, 27131949), (9, 9043983), (13, 6261219), (17, 4787991), (27, 3014661), (39, 2087073), (51, 1595997), (81, 1004887), (117, 695691), (153, 531999), (221, 368307), (351, 231897), (459, 177333), (663, 122769), (1053, 77299), (1377, 59111), (1989, 40923), (4547, 17901), (5967, 13641)]