21554778

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{27011}}^1$

素因数の和:27042

約数の個数: 32

約数和(自身を含む): 51863040

約数和(自身を除く): 30308262

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399, 798, 27011, 54022, 81033, 162066, 189077, 378154, 513209, 567231, 1026418, 1134462, 1539627, 3079254, 3592463, 7184926, 10777389, 21554778]

約数ペア:

[(1, 21554778), (2, 10777389), (3, 7184926), (6, 3592463), (7, 3079254), (14, 1539627), (19, 1134462), (21, 1026418), (38, 567231), (42, 513209), (57, 378154), (114, 189077), (133, 162066), (266, 81033), (399, 54022), (798, 27011)]