21062560

素因数分解:

$2^5\times 5^1\times {\mathrm{131641}}^1$

素因数の和:131656

約数の個数: 24

約数和(自身を含む): 49760676

約数和(自身を除く): 28698116

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 131641, 263282, 526564, 658205, 1053128, 1316410, 2106256, 2632820, 4212512, 5265640, 10531280, 21062560]

約数ペア:

[(1, 21062560), (2, 10531280), (4, 5265640), (5, 4212512), (8, 2632820), (10, 2106256), (16, 1316410), (20, 1053128), (32, 658205), (40, 526564), (80, 263282), (160, 131641)]