201631781

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1549}}^1$

素因数の和:1629

約数の個数: 32

約数和(自身を含む): 249984000

約数和(自身を除く): 48352219

約数列:

[1, 13, 17, 19, 31, 221, 247, 323, 403, 527, 589, 1549, 4199, 6851, 7657, 10013, 20137, 26333, 29431, 48019, 130169, 342329, 382603, 500327, 624247, 816323, 912361, 6504251, 10612199, 11860693, 15510137, 201631781]

約数ペア:

[(1, 201631781), (13, 15510137), (17, 11860693), (19, 10612199), (31, 6504251), (221, 912361), (247, 816323), (323, 624247), (403, 500327), (527, 382603), (589, 342329), (1549, 130169), (4199, 48019), (6851, 29431), (7657, 26333), (10013, 20137)]