18879681

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{587}}^1$

素因数の和:812

約数の個数: 16

約数和(自身を含む): 25740288

約数和(自身を除く): 6860607

約数列:

[1, 3, 71, 151, 213, 453, 587, 1761, 10721, 32163, 41677, 88637, 125031, 265911, 6293227, 18879681]

約数ペア:

[(1, 18879681), (3, 6293227), (71, 265911), (151, 125031), (213, 88637), (453, 41677), (587, 32163), (1761, 10721)]