19985105

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{12149}}^1$

素因数の和:12208

約数の個数: 16

約数和(自身を含む): 27993600

約数和(自身を除く): 8008495

約数列:

[1, 5, 7, 35, 47, 235, 329, 1645, 12149, 60745, 85043, 425215, 571003, 2855015, 3997021, 19985105]

約数ペア:

[(1, 19985105), (5, 3997021), (7, 2855015), (35, 571003), (47, 425215), (235, 85043), (329, 60745), (1645, 12149)]