19715913

素因数分解:

$3^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1429}}^1$

素因数の和:1518

約数の個数: 32

約数和(自身を含む): 33862400

約数和(自身を除く): 14146487

約数列:

[1, 3, 7, 9, 21, 27, 63, 73, 189, 219, 511, 657, 1429, 1533, 1971, 4287, 4599, 10003, 12861, 13797, 30009, 38583, 90027, 104317, 270081, 312951, 730219, 938853, 2190657, 2816559, 6571971, 19715913]

約数ペア:

[(1, 19715913), (3, 6571971), (7, 2816559), (9, 2190657), (21, 938853), (27, 730219), (63, 312951), (73, 270081), (189, 104317), (219, 90027), (511, 38583), (657, 30009), (1429, 13797), (1533, 12861), (1971, 10003), (4287, 4599)]