12731719

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 18385920

約数和(自身を除く): 5654201

約数列:

[1, 7, 11, 13, 23, 49, 77, 79, 91, 143, 161, 253, 299, 539, 553, 637, 869, 1001, 1027, 1127, 1771, 1817, 2093, 3289, 3871, 6083, 7007, 7189, 11297, 12397, 12719, 14651, 19987, 23023, 23621, 42581, 50323, 79079, 89033, 139909, 161161, 165347, 259831, 553553, 979363, 1157429, 1818817, 12731719]

約数ペア:

[(1, 12731719), (7, 1818817), (11, 1157429), (13, 979363), (23, 553553), (49, 259831), (77, 165347), (79, 161161), (91, 139909), (143, 89033), (161, 79079), (253, 50323), (299, 42581), (539, 23621), (553, 23023), (637, 19987), (869, 14651), (1001, 12719), (1027, 12397), (1127, 11297), (1771, 7189), (1817, 7007), (2093, 6083), (3289, 3871)]