20489758

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{2677}}^1$

素因数の和:2811

約数の個数: 16

約数和(自身を含む): 31814640

約数和(自身を除く): 11324882

約数列:

[1, 2, 43, 86, 89, 178, 2677, 3827, 5354, 7654, 115111, 230222, 238253, 476506, 10244879, 20489758]

約数ペア:

[(1, 20489758), (2, 10244879), (43, 476506), (86, 238253), (89, 230222), (178, 115111), (2677, 7654), (3827, 5354)]