21000969855

素因数分解:

$3^2\times 5^1\times {\mathrm{7243}}^1\times {\mathrm{64433}}^1$

素因数の和:71687

約数の個数: 24

約数和(自身を含む): 36407271888

約数和(自身を除く): 15406302033

約数列:

[1, 3, 5, 9, 15, 45, 7243, 21729, 36215, 64433, 65187, 108645, 193299, 322165, 325935, 579897, 966495, 2899485, 466688219, 1400064657, 2333441095, 4200193971, 7000323285, 21000969855]

約数ペア:

[(1, 21000969855), (3, 7000323285), (5, 4200193971), (9, 2333441095), (15, 1400064657), (45, 466688219), (7243, 2899485), (21729, 966495), (36215, 579897), (64433, 325935), (65187, 322165), (108645, 193299)]