81681558

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{1944799}}^1$

素因数の和:1944811

約数の個数: 16

約数和(自身を含む): 186700800

約数和(自身を除く): 105019242

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 1944799, 3889598, 5834397, 11668794, 13613593, 27227186, 40840779, 81681558]

約数ペア:

[(1, 81681558), (2, 40840779), (3, 27227186), (6, 13613593), (7, 11668794), (14, 5834397), (21, 3889598), (42, 1944799)]