18687867

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{3607}}^1$

素因数の和:3778

約数の個数: 16

約数和(自身を含む): 27363072

約数和(自身を除く): 8675205

約数列:

[1, 3, 11, 33, 157, 471, 1727, 3607, 5181, 10821, 39677, 119031, 566299, 1698897, 6229289, 18687867]

約数ペア:

[(1, 18687867), (3, 6229289), (11, 1698897), (33, 566299), (157, 119031), (471, 39677), (1727, 10821), (3607, 5181)]