21538847

素因数分解:

${\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1$

素因数の和:359

約数の個数: 24

約数和(自身を含む): 25836048

約数和(自身を除く): 4297201

約数列:

[1, 11, 17, 37, 121, 187, 283, 407, 629, 2057, 3113, 4477, 4811, 6919, 10471, 34243, 52921, 76109, 115181, 178007, 582131, 1266991, 1958077, 21538847]

約数ペア:

[(1, 21538847), (11, 1958077), (17, 1266991), (37, 582131), (121, 178007), (187, 115181), (283, 76109), (407, 52921), (629, 34243), (2057, 10471), (3113, 6919), (4477, 4811)]