28920804021

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{227}}^1\times {\mathrm{239933}}^1$

素因数の和:240225

約数の個数: 24

約数和(自身を含む): 42669862560

約数和(自身を除く): 13749058539

約数列:

[1, 3, 9, 59, 177, 227, 531, 681, 2043, 13393, 40179, 120537, 239933, 719799, 2159397, 14156047, 42468141, 54464791, 127404423, 163394373, 490183119, 3213422669, 9640268007, 28920804021]

約数ペア:

[(1, 28920804021), (3, 9640268007), (9, 3213422669), (59, 490183119), (177, 163394373), (227, 127404423), (531, 54464791), (681, 42468141), (2043, 14156047), (13393, 2159397), (40179, 719799), (120537, 239933)]