20107934

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{811}}^1$

素因数の和:861

約数の個数: 48

約数和(自身を含む): 39989376

約数和(自身を除く): 19881442

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 49, 77, 98, 154, 161, 253, 322, 506, 539, 811, 1078, 1127, 1622, 1771, 2254, 3542, 5677, 8921, 11354, 12397, 17842, 18653, 24794, 37306, 39739, 62447, 79478, 124894, 130571, 205183, 261142, 410366, 437129, 874258, 913997, 1436281, 1827994, 2872562, 10053967, 20107934]

約数ペア:

[(1, 20107934), (2, 10053967), (7, 2872562), (11, 1827994), (14, 1436281), (22, 913997), (23, 874258), (46, 437129), (49, 410366), (77, 261142), (98, 205183), (154, 130571), (161, 124894), (253, 79478), (322, 62447), (506, 39739), (539, 37306), (811, 24794), (1078, 18653), (1127, 17842), (1622, 12397), (1771, 11354), (2254, 8921), (3542, 5677)]