20956308

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2389}}^1$

素因数の和:2456

約数の個数: 48

約数和(自身を含む): 53000640

約数和(自身を除く): 32044332

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 43, 51, 68, 86, 102, 129, 172, 204, 258, 516, 731, 1462, 2193, 2389, 2924, 4386, 4778, 7167, 8772, 9556, 14334, 28668, 40613, 81226, 102727, 121839, 162452, 205454, 243678, 308181, 410908, 487356, 616362, 1232724, 1746359, 3492718, 5239077, 6985436, 10478154, 20956308]

約数ペア:

[(1, 20956308), (2, 10478154), (3, 6985436), (4, 5239077), (6, 3492718), (12, 1746359), (17, 1232724), (34, 616362), (43, 487356), (51, 410908), (68, 308181), (86, 243678), (102, 205454), (129, 162452), (172, 121839), (204, 102727), (258, 81226), (516, 40613), (731, 28668), (1462, 14334), (2193, 9556), (2389, 8772), (2924, 7167), (4386, 4778)]