18611131

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:152

約数の個数: 36

約数和(自身を含む): 24683736

約数和(自身を除く): 6072605

約数列:

[1, 7, 11, 43, 49, 73, 77, 121, 301, 473, 511, 539, 803, 847, 2107, 3139, 3311, 3577, 5203, 5621, 5929, 8833, 21973, 23177, 34529, 36421, 39347, 61831, 153811, 241703, 254947, 379819, 432817, 1691921, 2658733, 18611131]

約数ペア:

[(1, 18611131), (7, 2658733), (11, 1691921), (43, 432817), (49, 379819), (73, 254947), (77, 241703), (121, 153811), (301, 61831), (473, 39347), (511, 36421), (539, 34529), (803, 23177), (847, 21973), (2107, 8833), (3139, 5929), (3311, 5621), (3577, 5203)]