18873459

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:193

約数の個数: 48

約数和(自身を含む): 31600800

約数和(自身を除く): 12727341

約数列:

[1, 3, 9, 11, 27, 33, 53, 99, 109, 121, 159, 297, 327, 363, 477, 583, 981, 1089, 1199, 1431, 1749, 2943, 3267, 3597, 5247, 5777, 6413, 10791, 13189, 15741, 17331, 19239, 32373, 39567, 51993, 57717, 63547, 118701, 155979, 173151, 190641, 356103, 571923, 699017, 1715769, 2097051, 6291153, 18873459]

約数ペア:

[(1, 18873459), (3, 6291153), (9, 2097051), (11, 1715769), (27, 699017), (33, 571923), (53, 356103), (99, 190641), (109, 173151), (121, 155979), (159, 118701), (297, 63547), (327, 57717), (363, 51993), (477, 39567), (583, 32373), (981, 19239), (1089, 17331), (1199, 15741), (1431, 13189), (1749, 10791), (2943, 6413), (3267, 5777), (3597, 5247)]