21012474855

素因数分解:

$3^1\times 5^1\times {\mathrm{1951}}^1\times {\mathrm{718007}}^1$

素因数の和:719966

約数の個数: 16

約数和(自身を含む): 33637238784

約数和(自身を除く): 12624763929

約数列:

[1, 3, 5, 15, 1951, 5853, 9755, 29265, 718007, 2154021, 3590035, 10770105, 1400831657, 4202494971, 7004158285, 21012474855]

約数ペア:

[(1, 21012474855), (3, 7004158285), (5, 4202494971), (15, 1400831657), (1951, 10770105), (5853, 3590035), (9755, 2154021), (29265, 718007)]