17987002

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{1999}}^1$

素因数の和:2421

約数の個数: 16

約数和(自身を含む): 29520000

約数和(自身を除く): 11532998

約数列:

[1, 2, 11, 22, 409, 818, 1999, 3998, 4499, 8998, 21989, 43978, 817591, 1635182, 8993501, 17987002]

約数ペア:

[(1, 17987002), (2, 8993501), (11, 1635182), (22, 817591), (409, 43978), (818, 21989), (1999, 8998), (3998, 4499)]