19678715

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7919}}^1$

素因数の和:8002

約数の個数: 16

約数和(自身を含む): 27371520

約数和(自身を除く): 7692805

約数列:

[1, 5, 7, 35, 71, 355, 497, 2485, 7919, 39595, 55433, 277165, 562249, 2811245, 3935743, 19678715]

約数ペア:

[(1, 19678715), (5, 3935743), (7, 2811245), (35, 562249), (71, 277165), (355, 55433), (497, 39595), (2485, 7919)]