13256397

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 25229568

約数和(自身を除く): 11973171

約数列:

[1, 3, 7, 9, 11, 21, 33, 37, 47, 63, 77, 99, 111, 121, 141, 231, 259, 329, 333, 363, 407, 423, 517, 693, 777, 847, 987, 1089, 1221, 1551, 1739, 2331, 2541, 2849, 2961, 3619, 3663, 4477, 4653, 5217, 5687, 7623, 8547, 10857, 12173, 13431, 15651, 17061, 19129, 25641, 31339, 32571, 36519, 39809, 40293, 51183, 57387, 94017, 109557, 119427, 133903, 172161, 210419, 282051, 358281, 401709, 631257, 1205127, 1472933, 1893771, 4418799, 13256397]

約数ペア:

[(1, 13256397), (3, 4418799), (7, 1893771), (9, 1472933), (11, 1205127), (21, 631257), (33, 401709), (37, 358281), (47, 282051), (63, 210419), (77, 172161), (99, 133903), (111, 119427), (121, 109557), (141, 94017), (231, 57387), (259, 51183), (329, 40293), (333, 39809), (363, 36519), (407, 32571), (423, 31339), (517, 25641), (693, 19129), (777, 17061), (847, 15651), (987, 13431), (1089, 12173), (1221, 10857), (1551, 8547), (1739, 7623), (2331, 5687), (2541, 5217), (2849, 4653), (2961, 4477), (3619, 3663)]