21000514876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{991}}^1\times {\mathrm{481619}}^1$

素因数の和:482625

約数の個数: 24

約数和(自身を含む): 40132431360

約数和(自身を除く): 19131916484

約数列:

[1, 2, 4, 11, 22, 44, 991, 1982, 3964, 10901, 21802, 43604, 481619, 963238, 1926476, 5297809, 10595618, 21191236, 477284429, 954568858, 1909137716, 5250128719, 10500257438, 21000514876]

約数ペア:

[(1, 21000514876), (2, 10500257438), (4, 5250128719), (11, 1909137716), (22, 954568858), (44, 477284429), (991, 21191236), (1982, 10595618), (3964, 5297809), (10901, 1926476), (21802, 963238), (43604, 481619)]