16639511

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{571}}^1$

素因数の和:782

約数の個数: 16

約数和(自身を含む): 19987968

約数和(自身を除く): 3348457

約数列:

[1, 7, 23, 161, 181, 571, 1267, 3997, 4163, 13133, 29141, 91931, 103351, 723457, 2377073, 16639511]

約数ペア:

[(1, 16639511), (7, 2377073), (23, 723457), (161, 103351), (181, 91931), (571, 29141), (1267, 13133), (3997, 4163)]