21023055

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3361}}^1$

素因数の和:3511

約数の個数: 24

約数和(自身を含む): 36713040

約数和(自身を除く): 15689985

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 3361, 6255, 10083, 16805, 30249, 50415, 151245, 467179, 1401537, 2335895, 4204611, 7007685, 21023055]

約数ペア:

[(1, 21023055), (3, 7007685), (5, 4204611), (9, 2335895), (15, 1401537), (45, 467179), (139, 151245), (417, 50415), (695, 30249), (1251, 16805), (2085, 10083), (3361, 6255)]