18760821

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{1201}}^1$

素因数の和:1372

約数の個数: 16

約数和(自身を含む): 25847808

約数和(自身を除く): 7086987

約数列:

[1, 3, 41, 123, 127, 381, 1201, 3603, 5207, 15621, 49241, 147723, 152527, 457581, 6253607, 18760821]

約数ペア:

[(1, 18760821), (3, 6253607), (41, 457581), (123, 152527), (127, 147723), (381, 49241), (1201, 15621), (3603, 5207)]