21156435

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20441}}^1$

素因数の和:20475

約数の個数: 24

約数和(自身を含む): 38267424

約数和(自身を除く): 17110989

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20441, 61323, 102205, 183969, 306615, 470143, 919845, 1410429, 2350715, 4231287, 7052145, 21156435]

約数ペア:

[(1, 21156435), (3, 7052145), (5, 4231287), (9, 2350715), (15, 1410429), (23, 919845), (45, 470143), (69, 306615), (115, 183969), (207, 102205), (345, 61323), (1035, 20441)]