16991365

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{2081}}^1$

素因数の和:2180

約数の個数: 16

約数和(自身を含む): 21586176

約数和(自身を除く): 4594811

約数列:

[1, 5, 23, 71, 115, 355, 1633, 2081, 8165, 10405, 47863, 147751, 239315, 738755, 3398273, 16991365]

約数ペア:

[(1, 16991365), (5, 3398273), (23, 738755), (71, 239315), (115, 147751), (355, 47863), (1633, 10405), (2081, 8165)]