28173621

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{22739}}^1$

素因数の和:22808

約数の個数: 16

約数和(自身を含む): 43660800

約数和(自身を除く): 15487179

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 22739, 68217, 159173, 477519, 1341601, 4024803, 9391207, 28173621]

約数ペア:

[(1, 28173621), (3, 9391207), (7, 4024803), (21, 1341601), (59, 477519), (177, 159173), (413, 68217), (1239, 22739)]