20877165

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9871}}^1$

素因数の和:9929

約数の個数: 24

約数和(自身を含む): 36960768

約数和(自身を除く): 16083603

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 9871, 29613, 49355, 88839, 148065, 444195, 463937, 1391811, 2319685, 4175433, 6959055, 20877165]

約数ペア:

[(1, 20877165), (3, 6959055), (5, 4175433), (9, 2319685), (15, 1391811), (45, 463937), (47, 444195), (141, 148065), (235, 88839), (423, 49355), (705, 29613), (2115, 9871)]