19666857

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{12829}}^1$

素因数の和:12912

約数の個数: 16

約数和(自身を含む): 30381440

約数和(自身を除く): 10714583

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 12829, 38487, 89803, 269409, 936517, 2809551, 6555619, 19666857]

約数ペア:

[(1, 19666857), (3, 6555619), (7, 2809551), (21, 936517), (73, 269409), (219, 89803), (511, 38487), (1533, 12829)]