12820431

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 19873728

約数和(自身を除く): 7053297

約数列:

[1, 3, 13, 17, 39, 51, 61, 183, 221, 317, 663, 793, 951, 1037, 2379, 3111, 4121, 5389, 12363, 13481, 16167, 19337, 40443, 58011, 70057, 210171, 251381, 328729, 754143, 986187, 4273477, 12820431]

約数ペア:

[(1, 12820431), (3, 4273477), (13, 986187), (17, 754143), (39, 328729), (51, 251381), (61, 210171), (183, 70057), (221, 58011), (317, 40443), (663, 19337), (793, 16167), (951, 13481), (1037, 12363), (2379, 5389), (3111, 4121)]