20049001

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{509}}^1$

素因数の和:864

約数の個数: 16

約数和(自身を含む): 24382080

約数和(自身を除く): 4333079

約数列:

[1, 7, 17, 119, 331, 509, 2317, 3563, 5627, 8653, 39389, 60571, 168479, 1179353, 2864143, 20049001]

約数ペア:

[(1, 20049001), (7, 2864143), (17, 1179353), (119, 168479), (331, 60571), (509, 39389), (2317, 8653), (3563, 5627)]