28178835

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{26459}}^1$

素因数の和:26538

約数の個数: 16

約数和(自身を含む): 45722880

約数和(自身を除く): 17544045

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 26459, 79377, 132295, 396885, 1878589, 5635767, 9392945, 28178835]

約数ペア:

[(1, 28178835), (3, 9392945), (5, 5635767), (15, 1878589), (71, 396885), (213, 132295), (355, 79377), (1065, 26459)]