21448581

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{367}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 37588992

約数和(自身を除く): 16140411

約数列:

[1, 3, 7, 11, 21, 23, 33, 69, 77, 121, 161, 231, 253, 363, 367, 483, 759, 847, 1101, 1771, 2541, 2569, 2783, 4037, 5313, 7707, 8349, 8441, 12111, 19481, 25323, 28259, 44407, 58443, 59087, 84777, 92851, 133221, 177261, 278553, 310849, 649957, 932547, 1021361, 1949871, 3064083, 7149527, 21448581]

約数ペア:

[(1, 21448581), (3, 7149527), (7, 3064083), (11, 1949871), (21, 1021361), (23, 932547), (33, 649957), (69, 310849), (77, 278553), (121, 177261), (161, 133221), (231, 92851), (253, 84777), (363, 59087), (367, 58443), (483, 44407), (759, 28259), (847, 25323), (1101, 19481), (1771, 12111), (2541, 8441), (2569, 8349), (2783, 7707), (4037, 5313)]