20871279

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{16217}}^1$

素因数の和:16247

約数の個数: 24

約数和(自身を含む): 35420112

約数和(自身を除く): 14548833

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 16217, 48651, 145953, 178387, 210821, 535161, 632463, 1605483, 1897389, 2319031, 6957093, 20871279]

約数ペア:

[(1, 20871279), (3, 6957093), (9, 2319031), (11, 1897389), (13, 1605483), (33, 632463), (39, 535161), (99, 210821), (117, 178387), (143, 145953), (429, 48651), (1287, 16217)]