20852145

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20147}}^1$

素因数の和:20181

約数の個数: 24

約数和(自身を含む): 37717056

約数和(自身を除く): 16864911

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20147, 60441, 100735, 181323, 302205, 463381, 906615, 1390143, 2316905, 4170429, 6950715, 20852145]

約数ペア:

[(1, 20852145), (3, 6950715), (5, 4170429), (9, 2316905), (15, 1390143), (23, 906615), (45, 463381), (69, 302205), (115, 181323), (207, 100735), (345, 60441), (1035, 20147)]