20810745

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20107}}^1$

素因数の和:20141

約数の個数: 24

約数和(自身を含む): 37642176

約数和(自身を除く): 16831431

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20107, 60321, 100535, 180963, 301605, 462461, 904815, 1387383, 2312305, 4162149, 6936915, 20810745]

約数ペア:

[(1, 20810745), (3, 6936915), (5, 4162149), (9, 2312305), (15, 1387383), (23, 904815), (45, 462461), (69, 301605), (115, 180963), (207, 100535), (345, 60321), (1035, 20107)]