201728919

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{5281}}^1$

素因数の和:5415

約数の個数: 32

約数和(自身を含む): 328582656

約数和(自身を除く): 126853737

約数列:

[1, 3, 7, 17, 21, 51, 107, 119, 321, 357, 749, 1819, 2247, 5281, 5457, 12733, 15843, 36967, 38199, 89777, 110901, 269331, 565067, 628439, 1695201, 1885317, 3955469, 9606139, 11866407, 28818417, 67242973, 201728919]

約数ペア:

[(1, 201728919), (3, 67242973), (7, 28818417), (17, 11866407), (21, 9606139), (51, 3955469), (107, 1885317), (119, 1695201), (321, 628439), (357, 565067), (749, 269331), (1819, 110901), (2247, 89777), (5281, 38199), (5457, 36967), (12733, 15843)]