21038031

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{14519}}^1$

素因数の和:14555

約数の個数: 24

約数和(自身を含む): 36241920

約数和(自身を除く): 15203889

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 14519, 43557, 101633, 130671, 304899, 333937, 914697, 1001811, 2337559, 3005433, 7012677, 21038031]

約数ペア:

[(1, 21038031), (3, 7012677), (7, 3005433), (9, 2337559), (21, 1001811), (23, 914697), (63, 333937), (69, 304899), (161, 130671), (207, 101633), (483, 43557), (1449, 14519)]