20481512

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{337}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 39424320

約数和(自身を除く): 18942808

約数列:

[1, 2, 4, 8, 71, 107, 142, 214, 284, 337, 428, 568, 674, 856, 1348, 2696, 7597, 15194, 23927, 30388, 36059, 47854, 60776, 72118, 95708, 144236, 191416, 288472, 2560189, 5120378, 10240756, 20481512]

約数ペア:

[(1, 20481512), (2, 10240756), (4, 5120378), (8, 2560189), (71, 288472), (107, 191416), (142, 144236), (214, 95708), (284, 72118), (337, 60776), (428, 47854), (568, 36059), (674, 30388), (856, 23927), (1348, 15194), (2696, 7597)]