21356084

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{239}}^1\times {\mathrm{251}}^1$

素因数の和:583

約数の個数: 24

約数和(自身を含む): 38102400

約数和(自身を除く): 16746316

約数列:

[1, 2, 4, 89, 178, 239, 251, 356, 478, 502, 956, 1004, 21271, 22339, 42542, 44678, 59989, 85084, 89356, 119978, 239956, 5339021, 10678042, 21356084]

約数ペア:

[(1, 21356084), (2, 10678042), (4, 5339021), (89, 239956), (178, 119978), (239, 89356), (251, 85084), (356, 59989), (478, 44678), (502, 42542), (956, 22339), (1004, 21271)]