1998898559

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{288733}}^1$

素因数の和:288806

約数の個数: 16

約数和(自身を含む): 2439224832

約数和(自身を除く): 440326273

約数列:

[1, 7, 23, 43, 161, 301, 989, 6923, 288733, 2021131, 6640859, 12415519, 46486013, 86908633, 285556937, 1998898559]

約数ペア:

[(1, 1998898559), (7, 285556937), (23, 86908633), (43, 46486013), (161, 12415519), (301, 6640859), (989, 2021131), (6923, 288733)]