18947453

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{617}}^1$

素因数の和:772

約数の個数: 16

約数和(自身を含む): 22425984

約数和(自身を除く): 3478531

約数列:

[1, 7, 41, 107, 287, 617, 749, 4319, 4387, 25297, 30709, 66019, 177079, 462133, 2706779, 18947453]

約数ペア:

[(1, 18947453), (7, 2706779), (41, 462133), (107, 177079), (287, 66019), (617, 30709), (749, 25297), (4319, 4387)]