21098020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{62053}}^1$

素因数の和:62079

約数の個数: 24

約数和(自身を含む): 46912824

約数和(自身を除く): 25814804

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 62053, 124106, 248212, 310265, 620530, 1054901, 1241060, 2109802, 4219604, 5274505, 10549010, 21098020]

約数ペア:

[(1, 21098020), (2, 10549010), (4, 5274505), (5, 4219604), (10, 2109802), (17, 1241060), (20, 1054901), (34, 620530), (68, 310265), (85, 248212), (170, 124106), (340, 62053)]