199983217

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{7757}}^1$

素因数の和:7920

約数の個数: 16

約数和(自身を含む): 238325760

約数和(自身を除く): 38342543

約数列:

[1, 7, 29, 127, 203, 889, 3683, 7757, 25781, 54299, 224953, 985139, 1574671, 6895973, 28569031, 199983217]

約数ペア:

[(1, 199983217), (7, 28569031), (29, 6895973), (127, 1574671), (203, 985139), (889, 224953), (3683, 54299), (7757, 25781)]