20927284

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 44531200

約数和(自身を除く): 23603916

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 139, 266, 278, 283, 532, 556, 566, 973, 1132, 1946, 1981, 2641, 3892, 3962, 5282, 5377, 7924, 10564, 10754, 18487, 21508, 36974, 37639, 39337, 73948, 75278, 78674, 150556, 157348, 275359, 550718, 747403, 1101436, 1494806, 2989612, 5231821, 10463642, 20927284]

約数ペア:

[(1, 20927284), (2, 10463642), (4, 5231821), (7, 2989612), (14, 1494806), (19, 1101436), (28, 747403), (38, 550718), (76, 275359), (133, 157348), (139, 150556), (266, 78674), (278, 75278), (283, 73948), (532, 39337), (556, 37639), (566, 36974), (973, 21508), (1132, 18487), (1946, 10754), (1981, 10564), (2641, 7924), (3892, 5377), (3962, 5282)]