19782091

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{751}}^1$

素因数の和:882

約数の個数: 16

約数和(自身を含む): 23390208

約数和(自身を除く): 3608117

約数列:

[1, 7, 53, 71, 371, 497, 751, 3763, 5257, 26341, 39803, 53321, 278621, 373247, 2826013, 19782091]

約数ペア:

[(1, 19782091), (7, 2826013), (53, 373247), (71, 278621), (371, 53321), (497, 39803), (751, 26341), (3763, 5257)]