20965273

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1327}}^1$

素因数の和:1432

約数の個数: 16

約数和(自身を含む): 25030144

約数和(自身を除く): 4064871

約数列:

[1, 7, 37, 61, 259, 427, 1327, 2257, 9289, 15799, 49099, 80947, 343693, 566629, 2995039, 20965273]

約数ペア:

[(1, 20965273), (7, 2995039), (37, 566629), (61, 343693), (259, 80947), (427, 49099), (1327, 15799), (2257, 9289)]