19571139

素因数分解:

$3^4\times 7^2\times {\mathrm{4931}}^1$

素因数の和:4957

約数の個数: 30

約数和(自身を含む): 34016004

約数和(自身を除く): 14444865

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 4931, 14793, 34517, 44379, 103551, 133137, 241619, 310653, 399411, 724857, 931959, 2174571, 2795877, 6523713, 19571139]

約数ペア:

[(1, 19571139), (3, 6523713), (7, 2795877), (9, 2174571), (21, 931959), (27, 724857), (49, 399411), (63, 310653), (81, 241619), (147, 133137), (189, 103551), (441, 44379), (567, 34517), (1323, 14793), (3969, 4931)]