21005560898

素因数分解:

$2^1\times 7^1\times {\mathrm{2063}}^1\times {\mathrm{727289}}^1$

素因数の和:729361

約数の個数: 16

約数和(自身を含む): 36027037440

約数和(自身を除く): 15021476542

約数列:

[1, 2, 7, 14, 2063, 4126, 14441, 28882, 727289, 1454578, 5091023, 10182046, 1500397207, 3000794414, 10502780449, 21005560898]

約数ペア:

[(1, 21005560898), (2, 10502780449), (7, 3000794414), (14, 1500397207), (2063, 10182046), (4126, 5091023), (14441, 1454578), (28882, 727289)]