28191911

素因数分解:

${\mathrm{11}}^3\times {\mathrm{59}}^1\times {\mathrm{359}}^1$

素因数の和:451

約数の個数: 16

約数和(自身を含む): 31622400

約数和(自身を除く): 3430489

約数列:

[1, 11, 59, 121, 359, 649, 1331, 3949, 7139, 21181, 43439, 78529, 232991, 477829, 2562901, 28191911]

約数ペア:

[(1, 28191911), (11, 2562901), (59, 477829), (121, 232991), (359, 78529), (649, 43439), (1331, 21181), (3949, 7139)]