28177845

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21107}}^1$

素因数の和:21204

約数の個数: 16

約数和(自身を含む): 45593280

約数和(自身を除く): 17415435

約数列:

[1, 3, 5, 15, 89, 267, 445, 1335, 21107, 63321, 105535, 316605, 1878523, 5635569, 9392615, 28177845]

約数ペア:

[(1, 28177845), (3, 9392615), (5, 5635569), (15, 1878523), (89, 316605), (267, 105535), (445, 63321), (1335, 21107)]