19486818

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1$

素因数の和:533

約数の個数: 80

約数和(自身を含む): 49600320

約数和(自身を除く): 30113502

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 38, 39, 54, 57, 78, 81, 114, 117, 162, 171, 234, 247, 342, 351, 487, 494, 513, 702, 741, 974, 1026, 1053, 1461, 1482, 1539, 2106, 2223, 2922, 3078, 4383, 4446, 6331, 6669, 8766, 9253, 12662, 13149, 13338, 18506, 18993, 20007, 26298, 27759, 37986, 39447, 40014, 55518, 56979, 78894, 83277, 113958, 120289, 166554, 170937, 240578, 249831, 341874, 360867, 499662, 512811, 721734, 749493, 1025622, 1082601, 1498986, 2165202, 3247803, 6495606, 9743409, 19486818]

約数ペア:

[(1, 19486818), (2, 9743409), (3, 6495606), (6, 3247803), (9, 2165202), (13, 1498986), (18, 1082601), (19, 1025622), (26, 749493), (27, 721734), (38, 512811), (39, 499662), (54, 360867), (57, 341874), (78, 249831), (81, 240578), (114, 170937), (117, 166554), (162, 120289), (171, 113958), (234, 83277), (247, 78894), (342, 56979), (351, 55518), (487, 40014), (494, 39447), (513, 37986), (702, 27759), (741, 26298), (974, 20007), (1026, 18993), (1053, 18506), (1461, 13338), (1482, 13149), (1539, 12662), (2106, 9253), (2223, 8766), (2922, 6669), (3078, 6331), (4383, 4446)]