81576291

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 117964800

約数和(自身を除く): 36388509

約数列:

[1, 3, 19, 57, 59, 127, 177, 191, 381, 573, 1121, 2413, 3363, 3629, 7239, 7493, 10887, 11269, 22479, 24257, 33807, 72771, 142367, 214111, 427101, 460883, 642333, 1382649, 1431163, 4293489, 27192097, 81576291]

約数ペア:

[(1, 81576291), (3, 27192097), (19, 4293489), (57, 1431163), (59, 1382649), (127, 642333), (177, 460883), (191, 427101), (381, 214111), (573, 142367), (1121, 72771), (2413, 33807), (3363, 24257), (3629, 22479), (7239, 11269), (7493, 10887)]