20201427

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{743}}^1$

素因数の和:824

約数の個数: 32

約数和(自身を含む): 32140800

約数和(自身を除く): 11939373

約数列:

[1, 3, 9, 19, 27, 53, 57, 159, 171, 477, 513, 743, 1007, 1431, 2229, 3021, 6687, 9063, 14117, 20061, 27189, 39379, 42351, 118137, 127053, 354411, 381159, 748201, 1063233, 2244603, 6733809, 20201427]

約数ペア:

[(1, 20201427), (3, 6733809), (9, 2244603), (19, 1063233), (27, 748201), (53, 381159), (57, 354411), (159, 127053), (171, 118137), (477, 42351), (513, 39379), (743, 27189), (1007, 20061), (1431, 14117), (2229, 9063), (3021, 6687)]