20977976

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1747}}^1$

素因数の和:1851

約数の個数: 32

約数和(自身を含む): 41952000

約数和(自身を除く): 20974024

約数列:

[1, 2, 4, 8, 19, 38, 76, 79, 152, 158, 316, 632, 1501, 1747, 3002, 3494, 6004, 6988, 12008, 13976, 33193, 66386, 132772, 138013, 265544, 276026, 552052, 1104104, 2622247, 5244494, 10488988, 20977976]

約数ペア:

[(1, 20977976), (2, 10488988), (4, 5244494), (8, 2622247), (19, 1104104), (38, 552052), (76, 276026), (79, 265544), (152, 138013), (158, 132772), (316, 66386), (632, 33193), (1501, 13976), (1747, 12008), (3002, 6988), (3494, 6004)]