20662136

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3307}}^1$

素因数の和:3395

約数の個数: 32

約数和(自身を含む): 42871680

約数和(自身を除く): 22209544

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 142, 284, 568, 781, 1562, 3124, 3307, 6248, 6614, 13228, 26456, 36377, 72754, 145508, 234797, 291016, 469594, 939188, 1878376, 2582767, 5165534, 10331068, 20662136]

約数ペア:

[(1, 20662136), (2, 10331068), (4, 5165534), (8, 2582767), (11, 1878376), (22, 939188), (44, 469594), (71, 291016), (88, 234797), (142, 145508), (284, 72754), (568, 36377), (781, 26456), (1562, 13228), (3124, 6614), (3307, 6248)]