19916229

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{9311}}^1$

素因数の和:9368

約数の個数: 16

約数和(自身を含む): 28606464

約数和(自身を除く): 8690235

約数列:

[1, 3, 23, 31, 69, 93, 713, 2139, 9311, 27933, 214153, 288641, 642459, 865923, 6638743, 19916229]

約数ペア:

[(1, 19916229), (3, 6638743), (23, 865923), (31, 642459), (69, 288641), (93, 214153), (713, 27933), (2139, 9311)]