18381319551

素因数分解:

$3^4\times 7^1\times {\mathrm{59}}^2\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:343

約数の個数: 120

約数和(自身を含む): 32631589760

約数和(自身を除く): 14250270209

約数列:

[1, 3, 7, 9, 21, 27, 59, 63, 67, 81, 139, 177, 189, 201, 413, 417, 469, 531, 567, 603, 973, 1239, 1251, 1407, 1593, 1809, 2919, 3481, 3717, 3753, 3953, 4221, 4779, 5427, 8201, 8757, 9313, 10443, 11151, 11259, 11859, 12663, 24367, 24603, 26271, 27671, 27939, 31329, 33453, 35577, 37989, 57407, 65191, 73101, 73809, 78813, 83013, 83817, 93987, 106731, 172221, 195573, 219303, 221427, 233227, 249039, 251451, 281961, 320193, 483859, 516663, 549467, 586719, 657909, 664281, 699681, 747117, 754353, 1451577, 1549989, 1632589, 1648401, 1760157, 1973727, 2099043, 2241351, 3387013, 3846269, 4354731, 4649967, 4897767, 4945203, 5280471, 6297129, 10161039, 11538807, 13064193, 14693301, 14835609, 18891387, 30483117, 32418553, 34616421, 39192579, 44079903, 44506827, 91449351, 97255659, 103849263, 132239709, 226929871, 274348053, 291766977, 311547789, 680789613, 875300931, 2042368839, 2625902793, 6127106517, 18381319551]

約数ペア:

[(1, 18381319551), (3, 6127106517), (7, 2625902793), (9, 2042368839), (21, 875300931), (27, 680789613), (59, 311547789), (63, 291766977), (67, 274348053), (81, 226929871), (139, 132239709), (177, 103849263), (189, 97255659), (201, 91449351), (413, 44506827), (417, 44079903), (469, 39192579), (531, 34616421), (567, 32418553), (603, 30483117), (973, 18891387), (1239, 14835609), (1251, 14693301), (1407, 13064193), (1593, 11538807), (1809, 10161039), (2919, 6297129), (3481, 5280471), (3717, 4945203), (3753, 4897767), (3953, 4649967), (4221, 4354731), (4779, 3846269), (5427, 3387013), (8201, 2241351), (8757, 2099043), (9313, 1973727), (10443, 1760157), (11151, 1648401), (11259, 1632589), (11859, 1549989), (12663, 1451577), (24367, 754353), (24603, 747117), (26271, 699681), (27671, 664281), (27939, 657909), (31329, 586719), (33453, 549467), (35577, 516663), (37989, 483859), (57407, 320193), (65191, 281961), (73101, 251451), (73809, 249039), (78813, 233227), (83013, 221427), (83817, 219303), (93987, 195573), (106731, 172221)]