20895512

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{367}}^1\times {\mathrm{647}}^1$

素因数の和:1031

約数の個数: 32

約数和(自身を含む): 42923520

約数和(自身を除く): 22028008

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 367, 647, 734, 1294, 1468, 2588, 2936, 4037, 5176, 7117, 8074, 14234, 16148, 28468, 32296, 56936, 237449, 474898, 949796, 1899592, 2611939, 5223878, 10447756, 20895512]

約数ペア:

[(1, 20895512), (2, 10447756), (4, 5223878), (8, 2611939), (11, 1899592), (22, 949796), (44, 474898), (88, 237449), (367, 56936), (647, 32296), (734, 28468), (1294, 16148), (1468, 14234), (2588, 8074), (2936, 7117), (4037, 5176)]