18028213

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1481}}^1$

素因数の和:1572

約数の個数: 16

約数和(自身を含む): 21625344

約数和(自身を除く): 3597131

約数列:

[1, 7, 37, 47, 259, 329, 1481, 1739, 10367, 12173, 54797, 69607, 383579, 487249, 2575459, 18028213]

約数ペア:

[(1, 18028213), (7, 2575459), (37, 487249), (47, 383579), (259, 69607), (329, 54797), (1481, 12173), (1739, 10367)]