397675719

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1531}}^1$

素因数の和:1601

約数の個数: 72

約数和(自身を含む): 726535680

約数和(自身を除く): 328859961

約数列:

[1, 3, 7, 9, 19, 21, 31, 49, 57, 63, 93, 133, 147, 171, 217, 279, 399, 441, 589, 651, 931, 1197, 1519, 1531, 1767, 1953, 2793, 4123, 4557, 4593, 5301, 8379, 10717, 12369, 13671, 13779, 28861, 29089, 32151, 37107, 47461, 75019, 86583, 87267, 96453, 142383, 203623, 225057, 259749, 261801, 332227, 427149, 610869, 675171, 901759, 996681, 1425361, 1832607, 2325589, 2705277, 2990043, 4276083, 6312313, 6976767, 8115831, 12828249, 18936939, 20930301, 44186191, 56810817, 132558573, 397675719]

約数ペア:

[(1, 397675719), (3, 132558573), (7, 56810817), (9, 44186191), (19, 20930301), (21, 18936939), (31, 12828249), (49, 8115831), (57, 6976767), (63, 6312313), (93, 4276083), (133, 2990043), (147, 2705277), (171, 2325589), (217, 1832607), (279, 1425361), (399, 996681), (441, 901759), (589, 675171), (651, 610869), (931, 427149), (1197, 332227), (1519, 261801), (1531, 259749), (1767, 225057), (1953, 203623), (2793, 142383), (4123, 96453), (4557, 87267), (4593, 86583), (5301, 75019), (8379, 47461), (10717, 37107), (12369, 32151), (13671, 29089), (13779, 28861)]