18742899

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{6421}}^1$

素因数の和:6570

約数の個数: 16

約数和(自身を含む): 28770560

約数和(自身を除く): 10027661

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 6421, 19263, 44947, 134841, 892519, 2677557, 6247633, 18742899]

約数ペア:

[(1, 18742899), (3, 6247633), (7, 2677557), (21, 892519), (139, 134841), (417, 44947), (973, 19263), (2919, 6421)]