21104892

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:463

約数の個数: 72

約数和(自身を含む): 56609280

約数和(自身を除く): 35504388

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 71, 92, 138, 142, 207, 213, 276, 284, 359, 414, 426, 639, 718, 828, 852, 1077, 1278, 1436, 1633, 2154, 2556, 3231, 3266, 4308, 4899, 6462, 6532, 8257, 9798, 12924, 14697, 16514, 19596, 24771, 25489, 29394, 33028, 49542, 50978, 58788, 74313, 76467, 99084, 101956, 148626, 152934, 229401, 297252, 305868, 458802, 586247, 917604, 1172494, 1758741, 2344988, 3517482, 5276223, 7034964, 10552446, 21104892]

約数ペア:

[(1, 21104892), (2, 10552446), (3, 7034964), (4, 5276223), (6, 3517482), (9, 2344988), (12, 1758741), (18, 1172494), (23, 917604), (36, 586247), (46, 458802), (69, 305868), (71, 297252), (92, 229401), (138, 152934), (142, 148626), (207, 101956), (213, 99084), (276, 76467), (284, 74313), (359, 58788), (414, 50978), (426, 49542), (639, 33028), (718, 29394), (828, 25489), (852, 24771), (1077, 19596), (1278, 16514), (1436, 14697), (1633, 12924), (2154, 9798), (2556, 8257), (3231, 6532), (3266, 6462), (4308, 4899)]