21309464

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{2351}}^1$

素因数の和:2471

約数の個数: 32

約数和(自身を含む): 44029440

約数和(自身を除く): 22719976

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 103, 206, 412, 824, 1133, 2266, 2351, 4532, 4702, 9064, 9404, 18808, 25861, 51722, 103444, 206888, 242153, 484306, 968612, 1937224, 2663683, 5327366, 10654732, 21309464]

約数ペア:

[(1, 21309464), (2, 10654732), (4, 5327366), (8, 2663683), (11, 1937224), (22, 968612), (44, 484306), (88, 242153), (103, 206888), (206, 103444), (412, 51722), (824, 25861), (1133, 18808), (2266, 9404), (2351, 9064), (4532, 4702)]