18904938

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{242371}}^1$

素因数の和:242389

約数の個数: 16

約数和(自身を含む): 40718496

約数和(自身を除く): 21813558

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 242371, 484742, 727113, 1454226, 3150823, 6301646, 9452469, 18904938]

約数ペア:

[(1, 18904938), (2, 9452469), (3, 6301646), (6, 3150823), (13, 1454226), (26, 727113), (39, 484742), (78, 242371)]