21000604420

素因数分解:

$2^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1885153}}^1$

素因数の和:1885719

約数の個数: 24

約数和(自身を含む): 44180469144

約数和(自身を除く): 23179864724

約数列:

[1, 2, 4, 5, 10, 20, 557, 1114, 2228, 2785, 5570, 11140, 1885153, 3770306, 7540612, 9425765, 18851530, 37703060, 1050030221, 2100060442, 4200120884, 5250151105, 10500302210, 21000604420]

約数ペア:

[(1, 21000604420), (2, 10500302210), (4, 5250151105), (5, 4200120884), (10, 2100060442), (20, 1050030221), (557, 37703060), (1114, 18851530), (2228, 9425765), (2785, 7540612), (5570, 3770306), (11140, 1885153)]