18140031

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:162

約数の個数: 80

約数和(自身を含む): 35126784

約数和(自身を除く): 16986753

約数列:

[1, 3, 7, 9, 13, 21, 23, 27, 39, 63, 69, 81, 91, 107, 117, 161, 189, 207, 273, 299, 321, 351, 483, 567, 621, 749, 819, 897, 963, 1053, 1391, 1449, 1863, 2093, 2247, 2457, 2461, 2691, 2889, 4173, 4347, 6279, 6741, 7371, 7383, 8073, 8667, 9737, 12519, 13041, 17227, 18837, 20223, 22149, 24219, 29211, 31993, 37557, 51681, 56511, 60669, 66447, 87633, 95979, 112671, 155043, 169533, 199341, 223951, 262899, 287937, 465129, 671853, 788697, 863811, 1395387, 2015559, 2591433, 6046677, 18140031]

約数ペア:

[(1, 18140031), (3, 6046677), (7, 2591433), (9, 2015559), (13, 1395387), (21, 863811), (23, 788697), (27, 671853), (39, 465129), (63, 287937), (69, 262899), (81, 223951), (91, 199341), (107, 169533), (117, 155043), (161, 112671), (189, 95979), (207, 87633), (273, 66447), (299, 60669), (321, 56511), (351, 51681), (483, 37557), (567, 31993), (621, 29211), (749, 24219), (819, 22149), (897, 20223), (963, 18837), (1053, 17227), (1391, 13041), (1449, 12519), (1863, 9737), (2093, 8667), (2247, 8073), (2457, 7383), (2461, 7371), (2691, 6741), (2889, 6279), (4173, 4347)]