19976707

素因数分解:

${\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:318

約数の個数: 16

約数和(自身を含む): 21373632

約数和(自身を除く): 1396925

約数列:

[1, 37, 53, 61, 167, 1961, 2257, 3233, 6179, 8851, 10187, 119621, 327487, 376919, 539911, 19976707]

約数ペア:

[(1, 19976707), (37, 539911), (53, 376919), (61, 327487), (167, 119621), (1961, 10187), (2257, 8851), (3233, 6179)]