81357003

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{617}}^1$

素因数の和:673

約数の個数: 72

約数和(自身を含む): 153867168

約数和(自身を除く): 72510165

約数列:

[1, 3, 7, 9, 13, 21, 23, 39, 49, 63, 69, 91, 117, 147, 161, 207, 273, 299, 441, 483, 617, 637, 819, 897, 1127, 1449, 1851, 1911, 2093, 2691, 3381, 4319, 5553, 5733, 6279, 8021, 10143, 12957, 14191, 14651, 18837, 24063, 30233, 38871, 42573, 43953, 56147, 72189, 90699, 99337, 127719, 131859, 168441, 184483, 272097, 298011, 393029, 505323, 553449, 695359, 894033, 1179087, 1291381, 1660347, 2086077, 3537261, 3874143, 6258231, 9039667, 11622429, 27119001, 81357003]

約数ペア:

[(1, 81357003), (3, 27119001), (7, 11622429), (9, 9039667), (13, 6258231), (21, 3874143), (23, 3537261), (39, 2086077), (49, 1660347), (63, 1291381), (69, 1179087), (91, 894033), (117, 695359), (147, 553449), (161, 505323), (207, 393029), (273, 298011), (299, 272097), (441, 184483), (483, 168441), (617, 131859), (637, 127719), (819, 99337), (897, 90699), (1127, 72189), (1449, 56147), (1851, 43953), (1911, 42573), (2093, 38871), (2691, 30233), (3381, 24063), (4319, 18837), (5553, 14651), (5733, 14191), (6279, 12957), (8021, 10143)]