28028

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:42

約数の個数: 36

約数和(自身を含む): 67032

約数和(自身を除く): 39004

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 91, 98, 143, 154, 182, 196, 286, 308, 364, 539, 572, 637, 1001, 1078, 1274, 2002, 2156, 2548, 4004, 7007, 14014, 28028]

約数ペア:

[(1, 28028), (2, 14014), (4, 7007), (7, 4004), (11, 2548), (13, 2156), (14, 2002), (22, 1274), (26, 1078), (28, 1001), (44, 637), (49, 572), (52, 539), (77, 364), (91, 308), (98, 286), (143, 196), (154, 182)]