20014778

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 35831808

約数和(自身を除く): 15817030

約数列:

[1, 2, 7, 14, 31, 62, 107, 214, 217, 431, 434, 749, 862, 1498, 3017, 3317, 6034, 6634, 13361, 23219, 26722, 46117, 46438, 92234, 93527, 187054, 322819, 645638, 1429627, 2859254, 10007389, 20014778]

約数ペア:

[(1, 20014778), (2, 10007389), (7, 2859254), (14, 1429627), (31, 645638), (62, 322819), (107, 187054), (214, 93527), (217, 92234), (431, 46438), (434, 46117), (749, 26722), (862, 23219), (1498, 13361), (3017, 6634), (3317, 6034)]