20543992

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5167}}^1$

素因数の和:5251

約数の個数: 32

約数和(自身を含む): 44651520

約数和(自身を除く): 24107528

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 5167, 10334, 20668, 36169, 41336, 72338, 144676, 289352, 366857, 733714, 1467428, 2567999, 2934856, 5135998, 10271996, 20543992]

約数ペア:

[(1, 20543992), (2, 10271996), (4, 5135998), (7, 2934856), (8, 2567999), (14, 1467428), (28, 733714), (56, 366857), (71, 289352), (142, 144676), (284, 72338), (497, 41336), (568, 36169), (994, 20668), (1988, 10334), (3976, 5167)]