21060292

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{821}}^1$

素因数の和:900

約数の個数: 36

約数和(自身を含む): 41325228

約数和(自身を除く): 20264936

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 121, 212, 242, 484, 583, 821, 1166, 1642, 2332, 3284, 6413, 9031, 12826, 18062, 25652, 36124, 43513, 87026, 99341, 174052, 198682, 397364, 478643, 957286, 1914572, 5265073, 10530146, 21060292]

約数ペア:

[(1, 21060292), (2, 10530146), (4, 5265073), (11, 1914572), (22, 957286), (44, 478643), (53, 397364), (106, 198682), (121, 174052), (212, 99341), (242, 87026), (484, 43513), (583, 36124), (821, 25652), (1166, 18062), (1642, 12826), (2332, 9031), (3284, 6413)]