21316372

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{9887}}^1$

素因数の和:9916

約数の個数: 36

約数和(自身を含む): 47343744

約数和(自身を除く): 26027372

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 539, 1078, 2156, 9887, 19774, 39548, 69209, 108757, 138418, 217514, 276836, 435028, 484463, 761299, 968926, 1522598, 1937852, 3045196, 5329093, 10658186, 21316372]

約数ペア:

[(1, 21316372), (2, 10658186), (4, 5329093), (7, 3045196), (11, 1937852), (14, 1522598), (22, 968926), (28, 761299), (44, 484463), (49, 435028), (77, 276836), (98, 217514), (154, 138418), (196, 108757), (308, 69209), (539, 39548), (1078, 19774), (2156, 9887)]