21057070

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{56911}}^1$

素因数の和:56955

約数の個数: 16

約数和(自身を含む): 38927808

約数和(自身を除く): 17870738

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 56911, 113822, 284555, 569110, 2105707, 4211414, 10528535, 21057070]

約数ペア:

[(1, 21057070), (2, 10528535), (5, 4211414), (10, 2105707), (37, 569110), (74, 284555), (185, 113822), (370, 56911)]