27785331

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{347}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 48642048

約数和(自身を除く): 20856717

約数列:

[1, 3, 7, 9, 21, 31, 41, 63, 93, 123, 217, 279, 287, 347, 369, 651, 861, 1041, 1271, 1953, 2429, 2583, 3123, 3813, 7287, 8897, 10757, 11439, 14227, 21861, 26691, 32271, 42681, 75299, 80073, 96813, 99589, 128043, 225897, 298767, 441037, 677691, 896301, 1323111, 3087259, 3969333, 9261777, 27785331]

約数ペア:

[(1, 27785331), (3, 9261777), (7, 3969333), (9, 3087259), (21, 1323111), (31, 896301), (41, 677691), (63, 441037), (93, 298767), (123, 225897), (217, 128043), (279, 99589), (287, 96813), (347, 80073), (369, 75299), (651, 42681), (861, 32271), (1041, 26691), (1271, 21861), (1953, 14227), (2429, 11439), (2583, 10757), (3123, 8897), (3813, 7287)]