21693020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{63803}}^1$

素因数の和:63829

約数の個数: 24

約数和(自身を含む): 48235824

約数和(自身を除く): 26542804

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 63803, 127606, 255212, 319015, 638030, 1084651, 1276060, 2169302, 4338604, 5423255, 10846510, 21693020]

約数ペア:

[(1, 21693020), (2, 10846510), (4, 5423255), (5, 4338604), (10, 2169302), (17, 1276060), (20, 1084651), (34, 638030), (68, 319015), (85, 255212), (170, 127606), (340, 63803)]