18858028

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^2\times {\mathrm{181}}^1$

素因数の和:314

約数の個数: 36

約数和(自身を含む): 38556336

約数和(自身を除く): 19698308

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 181, 244, 362, 427, 724, 854, 1267, 1708, 2534, 3721, 5068, 7442, 11041, 14884, 22082, 26047, 44164, 52094, 77287, 104188, 154574, 309148, 673501, 1347002, 2694004, 4714507, 9429014, 18858028]

約数ペア:

[(1, 18858028), (2, 9429014), (4, 4714507), (7, 2694004), (14, 1347002), (28, 673501), (61, 309148), (122, 154574), (181, 104188), (244, 77287), (362, 52094), (427, 44164), (724, 26047), (854, 22082), (1267, 14884), (1708, 11041), (2534, 7442), (3721, 5068)]