19948976

素因数分解:

$2^4\times {\mathrm{173}}^1\times {\mathrm{7207}}^1$

素因数の和:7388

約数の個数: 20

約数和(自身を含む): 38879952

約数和(自身を除く): 18930976

約数列:

[1, 2, 4, 8, 16, 173, 346, 692, 1384, 2768, 7207, 14414, 28828, 57656, 115312, 1246811, 2493622, 4987244, 9974488, 19948976]

約数ペア:

[(1, 19948976), (2, 9974488), (4, 4987244), (8, 2493622), (16, 1246811), (173, 115312), (346, 57656), (692, 28828), (1384, 14414), (2768, 7207)]