19897732

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{971}}^1$

素因数の和:1131

約数の個数: 24

約数和(自身を含む): 35925120

約数和(自身を除く): 16027388

約数列:

[1, 2, 4, 47, 94, 109, 188, 218, 436, 971, 1942, 3884, 5123, 10246, 20492, 45637, 91274, 105839, 182548, 211678, 423356, 4974433, 9948866, 19897732]

約数ペア:

[(1, 19897732), (2, 9948866), (4, 4974433), (47, 423356), (94, 211678), (109, 182548), (188, 105839), (218, 91274), (436, 45637), (971, 20492), (1942, 10246), (3884, 5123)]