20290986

素因数分解:

$2^1\times 3^7\times {\mathrm{4639}}^1$

素因数の和:4662

約数の個数: 32

約数和(自身を含む): 45657600

約数和(自身を除く): 25366614

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 729, 1458, 2187, 4374, 4639, 9278, 13917, 27834, 41751, 83502, 125253, 250506, 375759, 751518, 1127277, 2254554, 3381831, 6763662, 10145493, 20290986]

約数ペア:

[(1, 20290986), (2, 10145493), (3, 6763662), (6, 3381831), (9, 2254554), (18, 1127277), (27, 751518), (54, 375759), (81, 250506), (162, 125253), (243, 83502), (486, 41751), (729, 27834), (1458, 13917), (2187, 9278), (4374, 4639)]