208013505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{1981081}}^1$

素因数の和:1981096

約数の個数: 16

約数和(自身を含む): 380367744

約数和(自身を除く): 172354239

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 1981081, 5943243, 9905405, 13867567, 29716215, 41602701, 69337835, 208013505]

約数ペア:

[(1, 208013505), (3, 69337835), (5, 41602701), (7, 29716215), (15, 13867567), (21, 9905405), (35, 5943243), (105, 1981081)]