201009991

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{1291}}^1$

素因数の和:1399

約数の個数: 32

約数和(自身を含む): 260467200

約数和(自身を除く): 59457209

約数列:

[1, 7, 13, 29, 59, 91, 203, 377, 413, 767, 1291, 1711, 2639, 5369, 9037, 11977, 16783, 22243, 37439, 76169, 117481, 155701, 262073, 486707, 533183, 990197, 2208901, 3406949, 6931379, 15462307, 28715713, 201009991]

約数ペア:

[(1, 201009991), (7, 28715713), (13, 15462307), (29, 6931379), (59, 3406949), (91, 2208901), (203, 990197), (377, 533183), (413, 486707), (767, 262073), (1291, 155701), (1711, 117481), (2639, 76169), (5369, 37439), (9037, 22243), (11977, 16783)]