18977967

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{5393}}^1$

素因数の和:5439

約数の個数: 24

約数和(自身を含む): 30292704

約数和(自身を除く): 11314737

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 391, 1173, 3519, 5393, 16179, 48537, 91681, 124039, 275043, 372117, 825129, 1116351, 2108663, 6325989, 18977967]

約数ペア:

[(1, 18977967), (3, 6325989), (9, 2108663), (17, 1116351), (23, 825129), (51, 372117), (69, 275043), (153, 124039), (207, 91681), (391, 48537), (1173, 16179), (3519, 5393)]