18787076

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{337}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 41338752

約数和(自身を除く): 22551676

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 181, 308, 337, 362, 674, 724, 1267, 1348, 1991, 2359, 2534, 3707, 3982, 4718, 5068, 7414, 7964, 9436, 13937, 14828, 25949, 27874, 51898, 55748, 60997, 103796, 121994, 243988, 426979, 670967, 853958, 1341934, 1707916, 2683868, 4696769, 9393538, 18787076]

約数ペア:

[(1, 18787076), (2, 9393538), (4, 4696769), (7, 2683868), (11, 1707916), (14, 1341934), (22, 853958), (28, 670967), (44, 426979), (77, 243988), (154, 121994), (181, 103796), (308, 60997), (337, 55748), (362, 51898), (674, 27874), (724, 25949), (1267, 14828), (1348, 13937), (1991, 9436), (2359, 7964), (2534, 7414), (3707, 5068), (3982, 4718)]