278736057

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{449}}^1\times {\mathrm{2999}}^1$

素因数の和:3477

約数の個数: 24

約数和(自身を含む): 421200000

約数和(自身を除く): 142463943

約数列:

[1, 3, 9, 23, 69, 207, 449, 1347, 2999, 4041, 8997, 10327, 26991, 30981, 68977, 92943, 206931, 620793, 1346551, 4039653, 12118959, 30970673, 92912019, 278736057]

約数ペア:

[(1, 278736057), (3, 92912019), (9, 30970673), (23, 12118959), (69, 4039653), (207, 1346551), (449, 620793), (1347, 206931), (2999, 92943), (4041, 68977), (8997, 30981), (10327, 26991)]