18538839

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{691}}^1$

素因数の和:979

約数の個数: 24

約数和(自身を含む): 29362944

約数和(自身を除く): 10824105

約数列:

[1, 3, 9, 11, 33, 99, 271, 691, 813, 2073, 2439, 2981, 6219, 7601, 8943, 22803, 26829, 68409, 187261, 561783, 1685349, 2059871, 6179613, 18538839]

約数ペア:

[(1, 18538839), (3, 6179613), (9, 2059871), (11, 1685349), (33, 561783), (99, 187261), (271, 68409), (691, 26829), (813, 22803), (2073, 8943), (2439, 7601), (2981, 6219)]