19646874

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:537

約数の個数: 80

約数和(自身を含む): 50006880

約数和(自身を除く): 30360006

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, 491, 494, 513, 702, 741, 982, 1026, 1053, 1473, 1482, 1539, 2106, 2223, 2946, 3078, 4419, 4446, 6383, 6669, 8838, 9329, 12766, 13257, 13338, 18658, 19149, 20007, 26514, 27987, 38298, 39771, 40014, 55974, 57447, 79542, 83961, 114894, 121277, 167922, 172341, 242554, 251883, 344682, 363831, 503766, 517023, 727662, 755649, 1034046, 1091493, 1511298, 2182986, 3274479, 6548958, 9823437, 19646874]

約数ペア:

[(1, 19646874), (2, 9823437), (3, 6548958), (6, 3274479), (9, 2182986), (13, 1511298), (18, 1091493), (19, 1034046), (26, 755649), (27, 727662), (38, 517023), (39, 503766), (54, 363831), (57, 344682), (78, 251883), (81, 242554), (114, 172341), (117, 167922), (162, 121277), (171, 114894), (234, 83961), (247, 79542), (342, 57447), (351, 55974), (491, 40014), (494, 39771), (513, 38298), (702, 27987), (741, 26514), (982, 20007), (1026, 19149), (1053, 18658), (1473, 13338), (1482, 13257), (1539, 12766), (2106, 9329), (2223, 8838), (2946, 6669), (3078, 6383), (4419, 4446)]