20194321

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:341

約数の個数: 24

約数和(自身を含む): 25080000

約数和(自身を除く): 4885679

約数列:

[1, 7, 19, 49, 109, 133, 199, 763, 931, 1393, 2071, 3781, 5341, 9751, 14497, 21691, 26467, 101479, 151837, 185269, 412129, 1062859, 2884903, 20194321]

約数ペア:

[(1, 20194321), (7, 2884903), (19, 1062859), (49, 412129), (109, 185269), (133, 151837), (199, 101479), (763, 26467), (931, 21691), (1393, 14497), (2071, 9751), (3781, 5341)]