20647144

素因数分解:

$2^3\times 7^1\times {\mathrm{503}}^1\times {\mathrm{733}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 44392320

約数和(自身を除く): 23745176

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 503, 733, 1006, 1466, 2012, 2932, 3521, 4024, 5131, 5864, 7042, 10262, 14084, 20524, 28168, 41048, 368699, 737398, 1474796, 2580893, 2949592, 5161786, 10323572, 20647144]

約数ペア:

[(1, 20647144), (2, 10323572), (4, 5161786), (7, 2949592), (8, 2580893), (14, 1474796), (28, 737398), (56, 368699), (503, 41048), (733, 28168), (1006, 20524), (1466, 14084), (2012, 10262), (2932, 7042), (3521, 5864), (4024, 5131)]