19944991

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{283}}^1$

素因数の和:486

約数の個数: 16

約数和(自身を含む): 22492800

約数和(自身を除く): 2547809

約数列:

[1, 11, 43, 149, 283, 473, 1639, 3113, 6407, 12169, 42167, 70477, 133859, 463837, 1813181, 19944991]

約数ペア:

[(1, 19944991), (11, 1813181), (43, 463837), (149, 133859), (283, 70477), (473, 42167), (1639, 12169), (3113, 6407)]