19890465

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{189433}}^1$

素因数の和:189448

約数の個数: 16

約数和(自身を含む): 36371328

約数和(自身を除く): 16480863

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 189433, 568299, 947165, 1326031, 2841495, 3978093, 6630155, 19890465]

約数ペア:

[(1, 19890465), (3, 6630155), (5, 3978093), (7, 2841495), (15, 1326031), (21, 947165), (35, 568299), (105, 189433)]