20480971

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1069}}^1$

素因数の和:1123

約数の個数: 24

約数和(自身を含む): 26347680

約数和(自身を除く): 5866709

約数列:

[1, 7, 17, 23, 49, 119, 161, 391, 833, 1069, 1127, 2737, 7483, 18173, 19159, 24587, 52381, 127211, 172109, 417979, 890477, 1204763, 2925853, 20480971]

約数ペア:

[(1, 20480971), (7, 2925853), (17, 1204763), (23, 890477), (49, 417979), (119, 172109), (161, 127211), (391, 52381), (833, 24587), (1069, 19159), (1127, 18173), (2737, 7483)]