12689404

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:586

約数の個数: 48

約数和(自身を含む): 27772416

約数和(自身を除く): 15083012

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 71, 91, 142, 182, 284, 364, 491, 497, 923, 982, 994, 1846, 1964, 1988, 3437, 3692, 6383, 6461, 6874, 12766, 12922, 13748, 25532, 25844, 34861, 44681, 69722, 89362, 139444, 178724, 244027, 453193, 488054, 906386, 976108, 1812772, 3172351, 6344702, 12689404]

約数ペア:

[(1, 12689404), (2, 6344702), (4, 3172351), (7, 1812772), (13, 976108), (14, 906386), (26, 488054), (28, 453193), (52, 244027), (71, 178724), (91, 139444), (142, 89362), (182, 69722), (284, 44681), (364, 34861), (491, 25844), (497, 25532), (923, 13748), (982, 12922), (994, 12766), (1846, 6874), (1964, 6461), (1988, 6383), (3437, 3692)]