20661873

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 30387840

約数和(自身を除く): 9725967

約数列:

[1, 3, 19, 37, 57, 97, 101, 111, 291, 303, 703, 1843, 1919, 2109, 3589, 3737, 5529, 5757, 9797, 10767, 11211, 29391, 68191, 71003, 186143, 204573, 213009, 362489, 558429, 1087467, 6887291, 20661873]

約数ペア:

[(1, 20661873), (3, 6887291), (19, 1087467), (37, 558429), (57, 362489), (97, 213009), (101, 204573), (111, 186143), (291, 71003), (303, 68191), (703, 29391), (1843, 11211), (1919, 10767), (2109, 9797), (3589, 5757), (3737, 5529)]