20038053

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{41}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 34038144

約数和(自身を除く): 14000091

約数列:

[1, 3, 7, 17, 21, 37, 41, 51, 111, 119, 123, 259, 287, 357, 629, 697, 777, 861, 1369, 1517, 1887, 2091, 4107, 4403, 4551, 4879, 9583, 10619, 13209, 14637, 23273, 25789, 28749, 31857, 56129, 69819, 77367, 162911, 168387, 180523, 392903, 488733, 541569, 954193, 1178709, 2862579, 6679351, 20038053]

約数ペア:

[(1, 20038053), (3, 6679351), (7, 2862579), (17, 1178709), (21, 954193), (37, 541569), (41, 488733), (51, 392903), (111, 180523), (119, 168387), (123, 162911), (259, 77367), (287, 69819), (357, 56129), (629, 31857), (697, 28749), (777, 25789), (861, 23273), (1369, 14637), (1517, 13209), (1887, 10619), (2091, 9583), (4107, 4879), (4403, 4551)]