15983995

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{4001}}^1$

素因数の和:4070

約数の個数: 16

約数和(自身を含む): 20746368

約数和(自身を除く): 4762373

約数列:

[1, 5, 17, 47, 85, 235, 799, 3995, 4001, 20005, 68017, 188047, 340085, 940235, 3196799, 15983995]

約数ペア:

[(1, 15983995), (5, 3196799), (17, 940235), (47, 340085), (85, 188047), (235, 68017), (799, 20005), (3995, 4001)]