19906736

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{15749}}^1$

素因数の和:15836

約数の個数: 20

約数和(自身を含む): 39060000

約数和(自身を除く): 19153264

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 15749, 31498, 62996, 125992, 251984, 1244171, 2488342, 4976684, 9953368, 19906736]

約数ペア:

[(1, 19906736), (2, 9953368), (4, 4976684), (8, 2488342), (16, 1244171), (79, 251984), (158, 125992), (316, 62996), (632, 31498), (1264, 15749)]