28561897

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 37094400

約数和(自身を除く): 8532503

約数列:

[1, 7, 13, 29, 79, 91, 137, 203, 377, 553, 959, 1027, 1781, 2291, 2639, 3973, 7189, 10823, 12467, 16037, 27811, 29783, 51649, 75761, 140699, 208481, 313867, 361543, 984893, 2197069, 4080271, 28561897]

約数ペア:

[(1, 28561897), (7, 4080271), (13, 2197069), (29, 984893), (79, 361543), (91, 313867), (137, 208481), (203, 140699), (377, 75761), (553, 51649), (959, 29783), (1027, 27811), (1781, 16037), (2291, 12467), (2639, 10823), (3973, 7189)]