213478727

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{2447}}^1$

素因数の和:2579

約数の個数: 24

約数和(自身を含む): 270885888

約数和(自身を除く): 57407161

約数列:

[1, 7, 11, 77, 103, 121, 721, 847, 1133, 2447, 7931, 12463, 17129, 26917, 87241, 188419, 252041, 296087, 1764287, 2072609, 2772451, 19407157, 30496961, 213478727]

約数ペア:

[(1, 213478727), (7, 30496961), (11, 19407157), (77, 2772451), (103, 2072609), (121, 1764287), (721, 296087), (847, 252041), (1133, 188419), (2447, 87241), (7931, 26917), (12463, 17129)]