21012588

素因数分解:

$2^2\times 3^3\times {\mathrm{29}}^1\times {\mathrm{6709}}^1$

素因数の和:6751

約数の個数: 48

約数和(自身を含む): 56364000

約数和(自身を除く): 35351412

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 29, 36, 54, 58, 87, 108, 116, 174, 261, 348, 522, 783, 1044, 1566, 3132, 6709, 13418, 20127, 26836, 40254, 60381, 80508, 120762, 181143, 194561, 241524, 362286, 389122, 583683, 724572, 778244, 1167366, 1751049, 2334732, 3502098, 5253147, 7004196, 10506294, 21012588]

約数ペア:

[(1, 21012588), (2, 10506294), (3, 7004196), (4, 5253147), (6, 3502098), (9, 2334732), (12, 1751049), (18, 1167366), (27, 778244), (29, 724572), (36, 583683), (54, 389122), (58, 362286), (87, 241524), (108, 194561), (116, 181143), (174, 120762), (261, 80508), (348, 60381), (522, 40254), (783, 26836), (1044, 20127), (1566, 13418), (3132, 6709)]