81864651

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{653}}^1$

素因数の和:827

約数の個数: 32

約数和(自身を含む): 124312320

約数和(自身を除く): 42447669

約数列:

[1, 3, 11, 29, 33, 87, 131, 319, 393, 653, 957, 1441, 1959, 3799, 4323, 7183, 11397, 18937, 21549, 41789, 56811, 85543, 125367, 208307, 256629, 624921, 940973, 2480747, 2822919, 7442241, 27288217, 81864651]

約数ペア:

[(1, 81864651), (3, 27288217), (11, 7442241), (29, 2822919), (33, 2480747), (87, 940973), (131, 624921), (319, 256629), (393, 208307), (653, 125367), (957, 85543), (1441, 56811), (1959, 41789), (3799, 21549), (4323, 18937), (7183, 11397)]