1261891897

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{1019}}^1\times {\mathrm{9311}}^1$

素因数の和:10356

約数の個数: 16

約数和(自身を含む): 1519718400

約数和(自身を除く): 257826503

約数列:

[1, 7, 19, 133, 1019, 7133, 9311, 19361, 65177, 135527, 176909, 1238363, 9487909, 66415363, 180270271, 1261891897]

約数ペア:

[(1, 1261891897), (7, 180270271), (19, 66415363), (133, 9487909), (1019, 1238363), (7133, 176909), (9311, 135527), (19361, 65177)]