21739239

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{463}}^1$

素因数の和:556

約数の個数: 32

約数和(自身を含む): 33853440

約数和(自身を除く): 12114201

約数列:

[1, 3, 9, 27, 37, 47, 111, 141, 333, 423, 463, 999, 1269, 1389, 1739, 4167, 5217, 12501, 15651, 17131, 21761, 46953, 51393, 65283, 154179, 195849, 462537, 587547, 805157, 2415471, 7246413, 21739239]

約数ペア:

[(1, 21739239), (3, 7246413), (9, 2415471), (27, 805157), (37, 587547), (47, 462537), (111, 195849), (141, 154179), (333, 65283), (423, 51393), (463, 46953), (999, 21761), (1269, 17131), (1389, 15651), (1739, 12501), (4167, 5217)]