21894328

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{66751}}^1$

素因数の和:66798

約数の個数: 16

約数和(自身を含む): 42053760

約数和(自身を除く): 20159432

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 66751, 133502, 267004, 534008, 2736791, 5473582, 10947164, 21894328]

約数ペア:

[(1, 21894328), (2, 10947164), (4, 5473582), (8, 2736791), (41, 534008), (82, 267004), (164, 133502), (328, 66751)]