18782127

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:133

約数の個数: 96

約数和(自身を含む): 37739520

約数和(自身を除く): 18957393

約数列:

[1, 3, 7, 9, 13, 17, 19, 21, 39, 51, 57, 63, 71, 91, 117, 119, 133, 153, 171, 213, 221, 247, 273, 323, 357, 399, 497, 639, 663, 741, 819, 923, 969, 1071, 1197, 1207, 1349, 1491, 1547, 1729, 1989, 2223, 2261, 2769, 2907, 3621, 4047, 4199, 4473, 4641, 5187, 6461, 6783, 8307, 8449, 9443, 10863, 12141, 12597, 13923, 15561, 15691, 17537, 19383, 20349, 22933, 25347, 28329, 29393, 37791, 47073, 52611, 58149, 68799, 76041, 84987, 88179, 109837, 122759, 141219, 157833, 160531, 206397, 264537, 298129, 329511, 368277, 481593, 894387, 988533, 1104831, 1444779, 2086903, 2683161, 6260709, 18782127]

約数ペア:

[(1, 18782127), (3, 6260709), (7, 2683161), (9, 2086903), (13, 1444779), (17, 1104831), (19, 988533), (21, 894387), (39, 481593), (51, 368277), (57, 329511), (63, 298129), (71, 264537), (91, 206397), (117, 160531), (119, 157833), (133, 141219), (153, 122759), (171, 109837), (213, 88179), (221, 84987), (247, 76041), (273, 68799), (323, 58149), (357, 52611), (399, 47073), (497, 37791), (639, 29393), (663, 28329), (741, 25347), (819, 22933), (923, 20349), (969, 19383), (1071, 17537), (1197, 15691), (1207, 15561), (1349, 13923), (1491, 12597), (1547, 12141), (1729, 10863), (1989, 9443), (2223, 8449), (2261, 8307), (2769, 6783), (2907, 6461), (3621, 5187), (4047, 4641), (4199, 4473)]