20883964

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{2521}}^1$

素因数の和:2653

約数の個数: 24

約数和(自身を含む): 38838800

約数和(自身を除く): 17954836

約数列:

[1, 2, 4, 19, 38, 76, 109, 218, 436, 2071, 2521, 4142, 5042, 8284, 10084, 47899, 95798, 191596, 274789, 549578, 1099156, 5220991, 10441982, 20883964]

約数ペア:

[(1, 20883964), (2, 10441982), (4, 5220991), (19, 1099156), (38, 549578), (76, 274789), (109, 191596), (218, 95798), (436, 47899), (2071, 10084), (2521, 8284), (4142, 5042)]