21377727

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{11701}}^1$

素因数の和:11743

約数の個数: 24

約数和(自身を含む): 36510240

約数和(自身を除く): 15132513

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 11701, 35103, 81907, 105309, 245721, 339329, 737163, 1017987, 2375303, 3053961, 7125909, 21377727]

約数ペア:

[(1, 21377727), (3, 7125909), (7, 3053961), (9, 2375303), (21, 1017987), (29, 737163), (63, 339329), (87, 245721), (203, 105309), (261, 81907), (609, 35103), (1827, 11701)]