18882805

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1237}}^1$

素因数の和:1356

約数の個数: 16

約数和(自身を含む): 23531904

約数和(自身を除く): 4649099

約数列:

[1, 5, 43, 71, 215, 355, 1237, 3053, 6185, 15265, 53191, 87827, 265955, 439135, 3776561, 18882805]

約数ペア:

[(1, 18882805), (5, 3776561), (43, 439135), (71, 265955), (215, 87827), (355, 53191), (1237, 15265), (3053, 6185)]