19998873

素因数分解:

$3^3\times {\mathrm{409}}^1\times {\mathrm{1811}}^1$

素因数の和:2229

約数の個数: 16

約数和(自身を含む): 29716800

約数和(自身を除く): 9717927

約数列:

[1, 3, 9, 27, 409, 1227, 1811, 3681, 5433, 11043, 16299, 48897, 740699, 2222097, 6666291, 19998873]

約数ペア:

[(1, 19998873), (3, 6666291), (9, 2222097), (27, 740699), (409, 48897), (1227, 16299), (1811, 11043), (3681, 5433)]