19977332

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{673}}^1$

素因数の和:899

約数の個数: 24

約数和(自身を含む): 36064392

約数和(自身を除く): 16087060

約数列:

[1, 2, 4, 41, 82, 164, 181, 362, 673, 724, 1346, 2692, 7421, 14842, 27593, 29684, 55186, 110372, 121813, 243626, 487252, 4994333, 9988666, 19977332]

約数ペア:

[(1, 19977332), (2, 9988666), (4, 4994333), (41, 487252), (82, 243626), (164, 121813), (181, 110372), (362, 55186), (673, 29684), (724, 27593), (1346, 14842), (2692, 7421)]