28921905

素因数分解:

$3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3943}}^1$

素因数の和:4117

約数の個数: 24

約数和(自身を含む): 50451648

約数和(自身を除く): 21529743

約数列:

[1, 3, 5, 9, 15, 45, 163, 489, 815, 1467, 2445, 3943, 7335, 11829, 19715, 35487, 59145, 177435, 642709, 1928127, 3213545, 5784381, 9640635, 28921905]

約数ペア:

[(1, 28921905), (3, 9640635), (5, 5784381), (9, 3213545), (15, 1928127), (45, 642709), (163, 177435), (489, 59145), (815, 35487), (1467, 19715), (2445, 11829), (3943, 7335)]