20899718

素因数分解:

$2^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{4229}}^1$

素因数の和:4591

約数の個数: 16

約数和(自身を含む): 35938080

約数和(自身を除く): 15038362

約数列:

[1, 2, 7, 14, 353, 706, 2471, 4229, 4942, 8458, 29603, 59206, 1492837, 2985674, 10449859, 20899718]

約数ペア:

[(1, 20899718), (2, 10449859), (7, 2985674), (14, 1492837), (353, 59206), (706, 29603), (2471, 8458), (4229, 4942)]