21330384

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{139}}^2$

素因数の和:312

約数の個数: 60

約数和(自身を含む): 57915936

約数和(自身を除く): 36585552

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 69, 92, 138, 139, 184, 276, 278, 368, 417, 552, 556, 834, 1104, 1112, 1668, 2224, 3197, 3336, 6394, 6672, 9591, 12788, 19182, 19321, 25576, 38364, 38642, 51152, 57963, 76728, 77284, 115926, 153456, 154568, 231852, 309136, 444383, 463704, 888766, 927408, 1333149, 1777532, 2666298, 3555064, 5332596, 7110128, 10665192, 21330384]

約数ペア:

[(1, 21330384), (2, 10665192), (3, 7110128), (4, 5332596), (6, 3555064), (8, 2666298), (12, 1777532), (16, 1333149), (23, 927408), (24, 888766), (46, 463704), (48, 444383), (69, 309136), (92, 231852), (138, 154568), (139, 153456), (184, 115926), (276, 77284), (278, 76728), (368, 57963), (417, 51152), (552, 38642), (556, 38364), (834, 25576), (1104, 19321), (1112, 19182), (1668, 12788), (2224, 9591), (3197, 6672), (3336, 6394)]