18716871

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{487}}^1\times {\mathrm{557}}^1$

素因数の和:1070

約数の個数: 16

約数和(自身を含む): 26141184

約数和(自身を除く): 7424313

約数列:

[1, 3, 23, 69, 487, 557, 1461, 1671, 11201, 12811, 33603, 38433, 271259, 813777, 6238957, 18716871]

約数ペア:

[(1, 18716871), (3, 6238957), (23, 813777), (69, 271259), (487, 38433), (557, 33603), (1461, 12811), (1671, 11201)]