21180194

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{65777}}^1$

素因数の和:65809

約数の個数: 16

約数和(自身を含む): 37888128

約数和(自身を除く): 16707934

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 65777, 131554, 460439, 920878, 1512871, 3025742, 10590097, 21180194]

約数ペア:

[(1, 21180194), (2, 10590097), (7, 3025742), (14, 1512871), (23, 920878), (46, 460439), (161, 131554), (322, 65777)]