19965584

素因数分解:

$2^4\times {\mathrm{173}}^1\times {\mathrm{7213}}^1$

素因数の和:7394

約数の個数: 20

約数和(自身を含む): 38912316

約数和(自身を除く): 18946732

約数列:

[1, 2, 4, 8, 16, 173, 346, 692, 1384, 2768, 7213, 14426, 28852, 57704, 115408, 1247849, 2495698, 4991396, 9982792, 19965584]

約数ペア:

[(1, 19965584), (2, 9982792), (4, 4991396), (8, 2495698), (16, 1247849), (173, 115408), (346, 57704), (692, 28852), (1384, 14426), (2768, 7213)]