21729816

素因数分解:

$2^3\times 3^3\times {\mathrm{29}}^1\times {\mathrm{3469}}^1$

素因数の和:3513

約数の個数: 64

約数和(自身を含む): 62460000

約数和(自身を除く): 40730184

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 29, 36, 54, 58, 72, 87, 108, 116, 174, 216, 232, 261, 348, 522, 696, 783, 1044, 1566, 2088, 3132, 3469, 6264, 6938, 10407, 13876, 20814, 27752, 31221, 41628, 62442, 83256, 93663, 100601, 124884, 187326, 201202, 249768, 301803, 374652, 402404, 603606, 749304, 804808, 905409, 1207212, 1810818, 2414424, 2716227, 3621636, 5432454, 7243272, 10864908, 21729816]

約数ペア:

[(1, 21729816), (2, 10864908), (3, 7243272), (4, 5432454), (6, 3621636), (8, 2716227), (9, 2414424), (12, 1810818), (18, 1207212), (24, 905409), (27, 804808), (29, 749304), (36, 603606), (54, 402404), (58, 374652), (72, 301803), (87, 249768), (108, 201202), (116, 187326), (174, 124884), (216, 100601), (232, 93663), (261, 83256), (348, 62442), (522, 41628), (696, 31221), (783, 27752), (1044, 20814), (1566, 13876), (2088, 10407), (3132, 6938), (3469, 6264)]