20987324

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{1019}}^1$

素因数の和:1313

約数の個数: 24

約数和(自身を含む): 38841600

約数和(自身を除く): 17854276

約数列:

[1, 2, 4, 19, 38, 76, 271, 542, 1019, 1084, 2038, 4076, 5149, 10298, 19361, 20596, 38722, 77444, 276149, 552298, 1104596, 5246831, 10493662, 20987324]

約数ペア:

[(1, 20987324), (2, 10493662), (4, 5246831), (19, 1104596), (38, 552298), (76, 276149), (271, 77444), (542, 38722), (1019, 20596), (1084, 19361), (2038, 10298), (4076, 5149)]