21720933

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3257}}^1$

素因数の和:3298

約数の個数: 32

約数和(自身を含む): 36489600

約数和(自身を除く): 14768667

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 117, 171, 247, 351, 513, 741, 2223, 3257, 6669, 9771, 29313, 42341, 61883, 87939, 127023, 185649, 381069, 556947, 804479, 1143207, 1670841, 2413437, 7240311, 21720933]

約数ペア:

[(1, 21720933), (3, 7240311), (9, 2413437), (13, 1670841), (19, 1143207), (27, 804479), (39, 556947), (57, 381069), (117, 185649), (171, 127023), (247, 87939), (351, 61883), (513, 42341), (741, 29313), (2223, 9771), (3257, 6669)]