21908612

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{7013}}^1$

素因数の和:7099

約数の個数: 24

約数和(自身を含む): 42420672

約数和(自身を除く): 20512060

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 7013, 14026, 28052, 77143, 154286, 308572, 497923, 995846, 1991692, 5477153, 10954306, 21908612]

約数ペア:

[(1, 21908612), (2, 10954306), (4, 5477153), (11, 1991692), (22, 995846), (44, 497923), (71, 308572), (142, 154286), (284, 77143), (781, 28052), (1562, 14026), (3124, 7013)]