20161686808

素因数分解:

$2^3\times {\mathrm{643}}^1\times {\mathrm{3919457}}^1$

素因数の和:3920106

約数の個数: 16

約数和(自身を含む): 37861964280

約数和(自身を除く): 17700277472

約数列:

[1, 2, 4, 8, 643, 1286, 2572, 5144, 3919457, 7838914, 15677828, 31355656, 2520210851, 5040421702, 10080843404, 20161686808]

約数ペア:

[(1, 20161686808), (2, 10080843404), (4, 5040421702), (8, 2520210851), (643, 31355656), (1286, 15677828), (2572, 7838914), (5144, 3919457)]