21095319

素因数分解:

$3^1\times 7^1\times {\mathrm{757}}^1\times {\mathrm{1327}}^1$

素因数の和:2094

約数の個数: 16

約数和(自身を含む): 32211968

約数和(自身を除く): 11116649

約数列:

[1, 3, 7, 21, 757, 1327, 2271, 3981, 5299, 9289, 15897, 27867, 1004539, 3013617, 7031773, 21095319]

約数ペア:

[(1, 21095319), (3, 7031773), (7, 3013617), (21, 1004539), (757, 27867), (1327, 15897), (2271, 9289), (3981, 5299)]