208715087

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1\times {\mathrm{2953}}^1$

素因数の和:3422

約数の個数: 16

約数和(自身を含む): 249553920

約数和(自身を除く): 40838833

約数列:

[1, 7, 23, 161, 439, 2953, 3073, 10097, 20671, 67919, 70679, 475433, 1296367, 9074569, 29816441, 208715087]

約数ペア:

[(1, 208715087), (7, 29816441), (23, 9074569), (161, 1296367), (439, 475433), (2953, 70679), (3073, 67919), (10097, 20671)]