18750981

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{971}}^1$

素因数の和:1172

約数の個数: 16

約数和(自身を含む): 25800768

約数和(自身を除く): 7049787

約数列:

[1, 3, 41, 123, 157, 471, 971, 2913, 6437, 19311, 39811, 119433, 152447, 457341, 6250327, 18750981]

約数ペア:

[(1, 18750981), (3, 6250327), (41, 457341), (123, 152447), (157, 119433), (471, 39811), (971, 19311), (2913, 6437)]