128280971

素因数分解:

$7^3\times {\mathrm{13}}^2\times {\mathrm{2213}}^1$

素因数の和:2260

約数の個数: 24

約数和(自身を含む): 162064800

約数和(自身を除く): 33783829

約数列:

[1, 7, 13, 49, 91, 169, 343, 637, 1183, 2213, 4459, 8281, 15491, 28769, 57967, 108437, 201383, 373997, 759059, 1409681, 2617979, 9867767, 18325853, 128280971]

約数ペア:

[(1, 128280971), (7, 18325853), (13, 9867767), (49, 2617979), (91, 1409681), (169, 759059), (343, 373997), (637, 201383), (1183, 108437), (2213, 57967), (4459, 28769), (8281, 15491)]