128385257

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{128257}}^1$

素因数の和:128288

約数の個数: 16

約数和(自身を含む): 172378752

約数和(自身を除く): 43993495

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 128257, 897799, 1410827, 1667341, 9875789, 11671387, 18340751, 128385257]

約数ペア:

[(1, 128385257), (7, 18340751), (11, 11671387), (13, 9875789), (77, 1667341), (91, 1410827), (143, 897799), (1001, 128257)]