20536972

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{859}}^1$

素因数の和:1045

約数の個数: 24

約数和(自身を含む): 37083200

約数和(自身を除く): 16546228

約数列:

[1, 2, 4, 43, 86, 139, 172, 278, 556, 859, 1718, 3436, 5977, 11954, 23908, 36937, 73874, 119401, 147748, 238802, 477604, 5134243, 10268486, 20536972]

約数ペア:

[(1, 20536972), (2, 10268486), (4, 5134243), (43, 477604), (86, 238802), (139, 147748), (172, 119401), (278, 73874), (556, 36937), (859, 23908), (1718, 11954), (3436, 5977)]