18712765

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{673}}^1$

素因数の和:828

約数の個数: 16

約数和(自身を含む): 23099328

約数和(自身を除く): 4386563

約数列:

[1, 5, 67, 83, 335, 415, 673, 3365, 5561, 27805, 45091, 55859, 225455, 279295, 3742553, 18712765]

約数ペア:

[(1, 18712765), (5, 3742553), (67, 279295), (83, 225455), (335, 55859), (415, 45091), (673, 27805), (3365, 5561)]