19747449

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1$

素因数の和:358

約数の個数: 32

約数和(自身を含む): 30476160

約数和(自身を除く): 10728711

約数列:

[1, 3, 9, 27, 43, 73, 129, 219, 233, 387, 657, 699, 1161, 1971, 2097, 3139, 6291, 9417, 10019, 17009, 28251, 30057, 51027, 84753, 90171, 153081, 270513, 459243, 731387, 2194161, 6582483, 19747449]

約数ペア:

[(1, 19747449), (3, 6582483), (9, 2194161), (27, 731387), (43, 459243), (73, 270513), (129, 153081), (219, 90171), (233, 84753), (387, 51027), (657, 30057), (699, 28251), (1161, 17009), (1971, 10019), (2097, 9417), (3139, 6291)]