16990395

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{66629}}^1$

素因数の和:66654

約数の個数: 16

約数和(自身を含む): 28784160

約数和(自身を除く): 11793765

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 66629, 199887, 333145, 999435, 1132693, 3398079, 5663465, 16990395]

約数ペア:

[(1, 16990395), (3, 5663465), (5, 3398079), (15, 1132693), (17, 999435), (51, 333145), (85, 199887), (255, 66629)]