18780151

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{547}}^1$

素因数の和:718

約数の個数: 16

約数和(自身を含む): 21481600

約数和(自身を除く): 2701449

約数列:

[1, 13, 19, 139, 247, 547, 1807, 2641, 7111, 10393, 34333, 76033, 135109, 988429, 1444627, 18780151]

約数ペア:

[(1, 18780151), (13, 1444627), (19, 988429), (139, 135109), (247, 76033), (547, 34333), (1807, 10393), (2641, 7111)]