18826715

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{293}}^1$

素因数の和:550

約数の個数: 16

約数和(自身を含む): 23115456

約数和(自身を除く): 4288741

約数列:

[1, 5, 71, 181, 293, 355, 905, 1465, 12851, 20803, 53033, 64255, 104015, 265165, 3765343, 18826715]

約数ペア:

[(1, 18826715), (5, 3765343), (71, 265165), (181, 104015), (293, 64255), (355, 53033), (905, 20803), (1465, 12851)]