18881379

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{709}}^1$

素因数の和:995

約数の個数: 24

約数和(自身を含む): 29905200

約数和(自身を除く): 11023821

約数列:

[1, 3, 9, 11, 33, 99, 269, 709, 807, 2127, 2421, 2959, 6381, 7799, 8877, 23397, 26631, 70191, 190721, 572163, 1716489, 2097931, 6293793, 18881379]

約数ペア:

[(1, 18881379), (3, 6293793), (9, 2097931), (11, 1716489), (33, 572163), (99, 190721), (269, 70191), (709, 26631), (807, 23397), (2127, 8877), (2421, 7799), (2959, 6381)]