19978043

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{227}}^1$

素因数の和:442

約数の個数: 16

約数和(自身を含む): 22063104

約数和(自身を除く): 2085061

約数列:

[1, 17, 31, 167, 227, 527, 2839, 3859, 5177, 7037, 37909, 88009, 119629, 644453, 1175179, 19978043]

約数ペア:

[(1, 19978043), (17, 1175179), (31, 644453), (167, 119629), (227, 88009), (527, 37909), (2839, 7037), (3859, 5177)]