2139100

素因数分解:

$2^2\times 5^2\times {\mathrm{21391}}^1$

素因数の和:21405

約数の個数: 18

約数和(自身を含む): 4642064

約数和(自身を除く): 2502964

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 21391, 42782, 85564, 106955, 213910, 427820, 534775, 1069550, 2139100]

約数ペア:

[(1, 2139100), (2, 1069550), (4, 534775), (5, 427820), (10, 213910), (20, 106955), (25, 85564), (50, 42782), (100, 21391)]