18949924

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^2\times {\mathrm{127}}^1$

素因数の和:284

約数の個数: 36

約数和(自身を含む): 38728704

約数和(自身を除く): 19778780

約数列:

[1, 2, 4, 7, 14, 28, 73, 127, 146, 254, 292, 508, 511, 889, 1022, 1778, 2044, 3556, 5329, 9271, 10658, 18542, 21316, 37084, 37303, 64897, 74606, 129794, 149212, 259588, 676783, 1353566, 2707132, 4737481, 9474962, 18949924]

約数ペア:

[(1, 18949924), (2, 9474962), (4, 4737481), (7, 2707132), (14, 1353566), (28, 676783), (73, 259588), (127, 149212), (146, 129794), (254, 74606), (292, 64897), (508, 37303), (511, 37084), (889, 21316), (1022, 18542), (1778, 10658), (2044, 9271), (3556, 5329)]