21241030

素因数分解:

$2^1\times 5^1\times {\mathrm{1069}}^1\times {\mathrm{1987}}^1$

素因数の和:3063

約数の個数: 16

約数和(自身を含む): 38288880

約数和(自身を除く): 17047850

約数列:

[1, 2, 5, 10, 1069, 1987, 2138, 3974, 5345, 9935, 10690, 19870, 2124103, 4248206, 10620515, 21241030]

約数ペア:

[(1, 21241030), (2, 10620515), (5, 4248206), (10, 2124103), (1069, 19870), (1987, 10690), (2138, 9935), (3974, 5345)]