81635769

素因数分解:

$3^4\times {\mathrm{271}}^1\times {\mathrm{3719}}^1$

素因数の和:4002

約数の個数: 20

約数和(自身を含む): 122432640

約数和(自身を除く): 40796871

約数列:

[1, 3, 9, 27, 81, 271, 813, 2439, 3719, 7317, 11157, 21951, 33471, 100413, 301239, 1007849, 3023547, 9070641, 27211923, 81635769]

約数ペア:

[(1, 81635769), (3, 27211923), (9, 9070641), (27, 3023547), (81, 1007849), (271, 301239), (813, 100413), (2439, 33471), (3719, 21951), (7317, 11157)]