19889836

素因数分解:

$2^2\times {\mathrm{47}}^2\times {\mathrm{2251}}^1$

素因数の和:2349

約数の個数: 18

約数和(自身を含む): 35579348

約数和(自身を除く): 15689512

約数列:

[1, 2, 4, 47, 94, 188, 2209, 2251, 4418, 4502, 8836, 9004, 105797, 211594, 423188, 4972459, 9944918, 19889836]

約数ペア:

[(1, 19889836), (2, 9944918), (4, 4972459), (47, 423188), (94, 211594), (188, 105797), (2209, 9004), (2251, 8836), (4418, 4502)]