21520150

素因数分解:

$2^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{3389}}^1$

素因数の和:3528

約数の個数: 24

約数和(自身を含む): 40354560

約数和(自身を除く): 18834410

約数列:

[1, 2, 5, 10, 25, 50, 127, 254, 635, 1270, 3175, 3389, 6350, 6778, 16945, 33890, 84725, 169450, 430403, 860806, 2152015, 4304030, 10760075, 21520150]

約数ペア:

[(1, 21520150), (2, 10760075), (5, 4304030), (10, 2152015), (25, 860806), (50, 430403), (127, 169450), (254, 84725), (635, 33890), (1270, 16945), (3175, 6778), (3389, 6350)]