81811377

素因数分解:

$3^4\times {\mathrm{271}}^1\times {\mathrm{3727}}^1$

素因数の和:4010

約数の個数: 20

約数和(自身を含む): 122695936

約数和(自身を除く): 40884559

約数列:

[1, 3, 9, 27, 81, 271, 813, 2439, 3727, 7317, 11181, 21951, 33543, 100629, 301887, 1010017, 3030051, 9090153, 27270459, 81811377]

約数ペア:

[(1, 81811377), (3, 27270459), (9, 9090153), (27, 3030051), (81, 1010017), (271, 301887), (813, 100629), (2439, 33543), (3727, 21951), (7317, 11181)]