15891001

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{353}}^1$

素因数の和:528

約数の個数: 16

約数和(自身を含む): 18691200

約数和(自身を除く): 2800199

約数列:

[1, 7, 59, 109, 353, 413, 763, 2471, 6431, 20827, 38477, 45017, 145789, 269339, 2270143, 15891001]

約数ペア:

[(1, 15891001), (7, 2270143), (59, 269339), (109, 145789), (353, 45017), (413, 38477), (763, 20827), (2471, 6431)]