21673701

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{11863}}^1$

素因数の和:11905

約数の個数: 24

約数和(自身を含む): 37015680

約数和(自身を除く): 15341979

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 11863, 35589, 83041, 106767, 249123, 344027, 747369, 1032081, 2408189, 3096243, 7224567, 21673701]

約数ペア:

[(1, 21673701), (3, 7224567), (7, 3096243), (9, 2408189), (21, 1032081), (29, 747369), (63, 344027), (87, 249123), (203, 106767), (261, 83041), (609, 35589), (1827, 11863)]