21031772157

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{331423}}^1$

素因数の和:332081

約数の個数: 24

約数和(自身を含む): 33192776448

約数和(自身を除く): 12161004291

約数列:

[1, 3, 9, 11, 33, 99, 641, 1923, 5769, 7051, 21153, 63459, 331423, 994269, 2982807, 3645653, 10936959, 32810877, 212442143, 637326429, 1911979287, 2336863573, 7010590719, 21031772157]

約数ペア:

[(1, 21031772157), (3, 7010590719), (9, 2336863573), (11, 1911979287), (33, 637326429), (99, 212442143), (641, 32810877), (1923, 10936959), (5769, 3645653), (7051, 2982807), (21153, 994269), (63459, 331423)]