18145281

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 31375232

約数和(自身を除く): 13229951

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 111, 121, 193, 231, 259, 363, 407, 579, 777, 847, 1221, 1351, 2123, 2541, 2849, 4053, 4477, 6369, 7141, 8547, 13431, 14861, 21423, 23353, 31339, 44583, 49987, 70059, 78551, 94017, 149961, 163471, 235653, 490413, 549857, 864061, 1649571, 2592183, 6048427, 18145281]

約数ペア:

[(1, 18145281), (3, 6048427), (7, 2592183), (11, 1649571), (21, 864061), (33, 549857), (37, 490413), (77, 235653), (111, 163471), (121, 149961), (193, 94017), (231, 78551), (259, 70059), (363, 49987), (407, 44583), (579, 31339), (777, 23353), (847, 21423), (1221, 14861), (1351, 13431), (2123, 8547), (2541, 7141), (2849, 6369), (4053, 4477)]