12991212

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1$

素因数の和:532

約数の個数: 96

約数和(自身を含む): 38259200

約数和(自身を除く): 25267988

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 27, 36, 38, 39, 52, 54, 57, 76, 78, 108, 114, 117, 156, 171, 228, 234, 247, 342, 351, 468, 487, 494, 513, 684, 702, 741, 974, 988, 1026, 1404, 1461, 1482, 1948, 2052, 2223, 2922, 2964, 4383, 4446, 5844, 6331, 6669, 8766, 8892, 9253, 12662, 13149, 13338, 17532, 18506, 18993, 25324, 26298, 26676, 27759, 37012, 37986, 52596, 55518, 56979, 75972, 83277, 111036, 113958, 120289, 166554, 170937, 227916, 240578, 249831, 333108, 341874, 360867, 481156, 499662, 683748, 721734, 999324, 1082601, 1443468, 2165202, 3247803, 4330404, 6495606, 12991212]

約数ペア:

[(1, 12991212), (2, 6495606), (3, 4330404), (4, 3247803), (6, 2165202), (9, 1443468), (12, 1082601), (13, 999324), (18, 721734), (19, 683748), (26, 499662), (27, 481156), (36, 360867), (38, 341874), (39, 333108), (52, 249831), (54, 240578), (57, 227916), (76, 170937), (78, 166554), (108, 120289), (114, 113958), (117, 111036), (156, 83277), (171, 75972), (228, 56979), (234, 55518), (247, 52596), (342, 37986), (351, 37012), (468, 27759), (487, 26676), (494, 26298), (513, 25324), (684, 18993), (702, 18506), (741, 17532), (974, 13338), (988, 13149), (1026, 12662), (1404, 9253), (1461, 8892), (1482, 8766), (1948, 6669), (2052, 6331), (2223, 5844), (2922, 4446), (2964, 4383)]