1338687

素因数分解:

$3^5\times 7^1\times {\mathrm{787}}^1$

素因数の和:809

約数の個数: 24

約数和(自身を含む): 2294656

約数和(自身を除く): 955969

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 787, 1701, 2361, 5509, 7083, 16527, 21249, 49581, 63747, 148743, 191241, 446229, 1338687]

約数ペア:

[(1, 1338687), (3, 446229), (7, 191241), (9, 148743), (21, 63747), (27, 49581), (63, 21249), (81, 16527), (189, 7083), (243, 5509), (567, 2361), (787, 1701)]