18398261

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:652

約数の個数: 16

約数和(自身を含む): 21679488

約数和(自身を除く): 3281227

約数列:

[1, 7, 53, 101, 371, 491, 707, 3437, 5353, 26023, 37471, 49591, 182161, 347137, 2628323, 18398261]

約数ペア:

[(1, 18398261), (7, 2628323), (53, 347137), (101, 182161), (371, 49591), (491, 37471), (707, 26023), (3437, 5353)]